1. She ___ (work) at this company for five years.

2. This box is ___ (more heavy/heavier) than that one.

3. The children ___ (play) in the park when it started to rain.

4. He will come as soon as he ___ (finish) his work.

5. The last time I ___ (see) her was three years ago.

6. The scientist claimed that the experiment ___ (prove) his theory.

7. If I ___ (be) in your position, I would have acted differently.

8. It is essential that every candidate ___ (submit) their application on time.

9. Not only ___ (did the team win/the team won) the match, but they also set a new record.

10. No sooner ___ (had he arrived/he had arrived) than he was asked to leave.