用所给动词的适当形式填空
1. Lucy __________ (come) to China last month.
2. She watches TV every evening. But she ___________ (not watch) TV last night.
3. Mary __________ (read) English yesterday morning.
4. There _________ (be) no one here yesterday.
5. I ___________ (call) Mike this morning.
6. I listened but ___________ (hear) nothing.
7. Tom ___________ (begin) to learn Chinese last year.
8. My mother ________________ (not do) housework yesterday.