)present perfect \ present perfect continuous i’m exhausted i (work) all day, and i (not finish) yet. i (visit) many countries over the past few years. someone (take) my books. i (look) for them for ages, but i (not find) them yet. i (shop) all morning, but i (not buy) anything. you are filthy. what you (do)? i (work) in the garden. the streets are all wet. it (rain) i (listen) to you for the past half an hour, but i’m afraid i (not understand) a single word. past simple \ past continuous andrew (to write) the label when the surgery bell (to ring) and presently a short man (to enter). a dog (to follow) him. there (to be) silence while the man (to look) andrew up and down. “i (to see) a light in your window as i (to pass),” he (to say). during dinner while andrew (to chew) his piece of cold meat, mrs. page (to help) herself to wine and a hot beefsteak. after dinner while andrew 9to try) hard to swallow the last piece of meat she (to sit) studying him, and by the look in her eyes andrew (to see) that she (to reflect) on something concerning him. jim’s way (to lie) along the quays. he (to walk) slowly. the multitude of ships of all sizes and nations (to delight) him. in one ship sailors (to sing) at their work; in another sailors (to hang) to threads that (to seem) no thicker than spider’s; along the quay men (to walk) their clumsy swaggering sea-walk. jim half (to dream) still when he (to come) to the place of his destination and (to meet) squire trelawney, who (to come) out of the door of large inn. past simple or past perfect they (to complete) all the preparations for the fancy-dress ball by 5 o’clock. on leaving the hospital the man (to thank) the doctor who (to cure) him of his disease. in the morning all the passengers (to feel) good after the night they (to spend) in the comfortable sleeper. during my last visit to the picture gallery i (to find) that i no longer (to like) the pictures which (to impress) me when i first (to see) them. evidently my taste (to change). last night he (to complete) the experiment which he (to begin) some months before. no sooner she (to open) the drawer than she (to find) the photo which she (to think) she (to lose) longer before. they (to be) friends) for some ten years before i (to meet) them. past simple or past perfect continuous it was midnight. i (to study) for five straight hours. no wonder i was getting tired. jack suddenly realized that the teacher was asking him a question. he couldn’t answer because he (to daydream) for the last ten minutes. at least two hundred people were waiting in line to buy tickets to the game. some of them (to stand) in line for more than four hours. maria’s sister (to study) at the university for 8 years before she finally (to pass) her exams. i (to stand) there for a half an hour when i (to realize) i (to be) at the wrong bus stop. i’m really sorry i (to be) so late last night. that’s ok. we (not to wait) long. the strange thing (to be) that we just (to talk) about ghosts when we (to hear) the noise upstairs

I’m exhausted I (have been working) all day, and I (have not finished или haven't finished) yet.
I
(have visited) many countries over the past few years.
Someone
(has taken) my books. I (have looked) for them for ages, but I (have not found или haven't found) them
yet.
I
( have been shopping) all morning, but I (haven't bought) anything.
You
are filthy. What (have) you (done)? I (have worked) in the garden.
The
streets are all wet. It (has been raining)
I
(have been listening) to you for the past half an hour, but I’m afraid I (haven't
understood) a single word.


Past simple \ past continuous 
Andrew (wrote) the label when the surgery bell (rang) and presently a short man (entered). A dog (followed) him. There (was) silence while the man (was looking) Andrew up and down. “I (saw) a light in your window as I (was passing),” he (said). During dinner while Andrew (was chewing) his piece of cold meat, Mrs. Page (helped) herself to wine and a hot beefsteak. After dinner while Andrew (was trying) hard to swallow the last piece of meat she (was sitting) studying him, and by the look in her eyes Andrew (saw) that she (reflected) on something concerning him. Jim’s way (lied) along the quays. He (was walking) slowly. The multitude of ships of all sizes and nations (delighted) him. In one ship sailors (were singing) at their work; in another sailors (were hanging) to threads that (seemed) no thicker than spider’s; along the quay men (were walking) their clumsy swaggering sea-walk. Jim half (dreamed) still when he (came) to the place of his destination and (met) Squire Trelawney, who (came) out of the door of large inn. 
Past Simple or Past Perfect 
They (had completed) all the preparations for the fancy-dress ball by 5 o’clock. On leaving the hospital the man (thanked) the doctor who (cured) him of his disease. In the morning all the passengers (felt) good after the night they (had spent) in the comfortable sleeper. During my last visit to the picture gallery I (found) that I no longer (liked) the pictures which (had impressed) me when I first (saw) them. Evidently my taste (had changed). Last night he (completed) the experiment which he (begun) some months before. No sooner she (had opened) the drawer than she (found) the photo which she (thought) she (lost) longer before. They (were) friends for some ten years before I (met) them. 
Past Simple or Past Perfect Continuous 
It was midnight. I (had been studying) for five straight hours. No wonder I was getting tired. Jack suddenly realized that the teacher was asking him a question. He couldn’t answer because he (had been daydreaming) for the last ten minutes. At least two hundred people were waiting in line to buy tickets to the game. Some of them (had been standing) in line for more than four hours. Maria’s sister (had been studying) at the university for 8 years before she finally (passed) her exams. I (had been standing) there for a half an hour when I (realized) I (was) at the wrong bus stop. I’m really sorry I (was) so late last night. That’s OK. We (waited not) long. The strange thing (was) that we just (talked) about ghosts when we (heared) the noise upstairs