1.Last night, while I (do) my homework, my mother (make) some cakes.
2. (Be) quiet, everyone. Someone (come).
3. John (call) when I (water) the flowers in the garden.
4. This is the first time I (eat) a meal (cook) by a Japanese cook.
5. Why (you/ always/ talk)? You’d better (concentrate) on your work.
6. He usually (come) home before 10, but last night he (stay) out very late.
7. If I (be) you, I (not apply) for this job.
8. The film we saw last night (not be) as interesting as we (expect).
9. (Not know) the way, he stopped (ask) a passer-by.
10. He should know how (use) the lift, but if he doesnot you'd better (show) him.