1. we ( to have ) a postcard from them two days ago.they (to say) they (to have) a marvellous time. 2.while she (to shop) this morning,she (to lose) hermoney.she (no to know) how. 3.they (to announce) our flight.we (to have) a problem. one of our suitcases (to miss). 4.who (to speak) (not to know). 5.he (not to smoke) . he (not to smoke) now. when he (to be) at the office yesterday, he ( not to smoke), he (to work) hard. 6.when my sister (to wash) her skirt, she (to find) a pound note in the pocket. 7.when you (to learn) german? 8.we (to go) home now because it (to be) late. 9.who you (to wait) for? 10.her car (to break) down yesterday while she (to drive) to work . 11.when and where it (to happen)? 12.she always (to wear) nice clothes for work.today she (to wear) a nice blouse and a dark skirt. 13.what she (to watch) at the moment? 14.i (to see) my friend in the street yesterday ,but he (to run) for a bus and he (not to have) time to speak to me. 15.what your son (to (to study) computer science.

1. We ( had ) a postcard from them two days ago.They (said) they (were having) a marvellous time. 2.While she (was shopping) this morning,she ( lost) her money.She (does not know) how.
3.They (have announced) our flight.We  have) a problem. One of our suitcases (is missing).
4.Who (is speaking) there?I (do not know).
5.He (does not smoke) . He (is not smoking) now. When he (was) at the office yesterday, he (was not smoking), he (was working) hard.
6.When my sister (was washing) her skirt, she found) a pound note in the pocket.
7.When did you  learn) German?
8.We (are going) home now because it is late.
9.Who are you  waiting) for?
10.Her car  broke) down yesterday while she was driving) to work .
11.When and where did it happen)?
12.She always  wears) nice clothes for work.Today she is wearing) a nice blouse and a dark skirt.
13.What is she (watching) at the moment?
14.I (saw) my friend in the street yesterday ,but he (was running) for a bus and he (did not have) time to speak to me.
15.What does your son ( do)?He (studies) computer science.