时态填空

1. The conference           (last) a full week by the time it ends.

2. The first use of atomic weapons was in 1945, and their power          (increase) enormously ever since.

3. I will not be able to come to your reception as we          (have) our weekly meeting this time tomorrow.

4. He kept looking at her, wondering whether he          (see) her somewhere before.
5. Rather than __________ (work) for the mean boss, he prefers to start his own                                  business.

6. He leaves for work very early in the morning to avoid __________ (catch) in the traffic jams.

7. Frank had learned English for 12 years by the time he __________ (graduate) from senior high school.

8. Simon __________ (walk) along the noisy street when he came across one of his closest friends the other day.

9. It is the second time that Debby __________ (not finish) her homework in time.

10. Please ensure that all the windows ___________ (shut) before you leave in case it rains.