1. Be quiet! The baby (sleep) ______________.
2. The sun (set) ___________ in the West.
3. Mr Lam always (go) ______________ to work by bus
4. It ( not rain) _______________ in the dry season.
5. My little sister (drink) _______________ milk every day.
6. The doctor sometimes (return) ______________ home late.
7. Look! The bus (come) _______________.
8. The earth (move) _________________ around the sun.
9. They (not speak) ________________ to each other since they quarreled.
10. I (try) ______________ to learn English for years, but I (not succeed) __________ yet.