B) Use PRESENT PERFECT TENSE or PRESENT PERFECT CONTINUOUS to fill in the blanks:
1. I’m trying to study. I (try) to study for the last hour, but something always seems to interrupt me. I think I’d better go to the library.
2. The children are playing basketball right now. They (play) for almost two hours. They must be getting tired.
3. The telephone (ring) four times in the last hour, and each time it has been for my roommate.
4. The telephone (ring) for almost a minute. Why doesn’t someone answer it?
5. It (rain) all day. I wonder when it will stop.
6. We (have) three accidents so far this week. I
wonder how many more we will have if you keep using the tools carelessly.
7. We (live) here since last June.
8. My little son is dirty from head to foot because he
(play) in the mud.
9. What’s the matter? Your eyes are red and puffy. I hope you (not / cry). Oh, now I understand. You (peel) some onions.
10. Hello, Rob. I’m happy to see you again. I (not / see) you for weeks. What you (do) lately? 11. I (not / be) able to reach my boss on the phone yet. I (try) for the last twenty minutes, but the line busy.
12. We (have) three major snowstorms so far this winter. I wonder how many more we will have.
13. I (write) them three times, but I still haven’t received a reply.
14. A: Dr. Harrison is a good teacher. How long he (be) at the university?
B: He (teach) here for almost 25 years.
15. A: What are you going to order for dinner?
B: Well, I (have / have) pizza. So I think, I’ll order that.
16. My uncle (paint) the outside of his house for three weeks and he’s still not finished.
17. The Smiths are presently in Tunisia. They (travel) throughout North Africa since the middle of May. They’ll return home in another month.

Use PRESENT PERFECT TENSE or PRESENT PERFECT CONTINUOUS to fill in the blanks: 

1. I’m trying to study. I have been trying to study for the last hour, but something always seems to interrupt me. I think I’d better go to the library. 

2. The children are playing basketball right now. They have been playing for almost two hours. They must be getting tired. 

3. The telephone has rung four times in the last hour, and each time it has been for my roommate. 

4. The telephone has been ringing for almost a minute. Why doesn’t someone answer it? 

5. It has been raining all day. I wonder when it will stop. 

6. We have had three accidents so far this week. I wonder how many more we will have if you keep using the tools carelessly. 

7. We have been living here since last June. 

8. My little son is dirty from head to foot because he has been playing in the mud. 

9. What’s the matter? Your eyes are red and puffy. I hope you have not cried.  Oh, now I understand. You have been peeling some onions. 

10. Hello, Rob. I’m happy to see you again. I haven't seen  you for weeks. What have you been doing lately? 

11. I haven't been able to reach my boss on the phone yet. I have been trying for the last twenty minutes, but the line has been busy. 

12. We have had three major snowstorms so far this winter. I wonder how many more we will have. 

13. I have written to them three times, but I still haven’t received a reply. 

14. A: Dr. Harrison is a good teacher. How long has he been teaching at the university? B: He has been teaching here for almost 25 years. 15. A: What are you going to order for dinner? B: Well, I have had pizza. So I think, I’ll order that. 

16. My uncle has been painting the outside of his house for three weeks and he’s still not finished. 

17. The Smiths are presently in Tunisia. They have been travelling throughout North Africa since the middle of May. They’ll return home in another month.