20. Don’t interrupt me . I ___ letters all morning and have written five.
A. write B. have written C. was writing D. have been writing
19. So far solar energy ___ in the world.
A. has not been widely used B. is not widely used
C. was not widely used D. hasn’t used widely
18. It ___ every day so far this month.
A. is raining B. rained C. rains D. has rained
17. My pen ___ for two weeks. May I borrow yours, please?
A. has lost B. had lost C. had been lost D. has been lost
16. You look worried. What ____ to you?
A. happens B. has happened C. happened D. is happening
15. -Do you know our town at all?
-No. This is the first time I ___ here.
A. was B. have been C. come D. was coming
14. The pen I ___ I ___ is on my desk, right under my nose.
A. think; lost B. thought; had lost C. think; had lost D. thought; have lost
13. I did not know the reason why he ___ such a big mistake.
A. made B. really made C. had made D. was making
12. Harry’s father ___ by the time the doctor arrived.
A. had already died B. has died C. is dying D. died
11. I ___ Mr Smith would give me an early reply, but he didn’t.
A. hope B. really hope C. will hope D. had hoped
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