1. Mr King learned Chinese as his _________ (two) language.
2. If you do your homework _________ (care), you will lose the exam again.
3. We should think about what we can do _________ (keep) animals and plants from becoming endangered.
4. —Did you go to Tom"s birthday party? —No, I _________ (not invite)
5. We should do something to stop sandstorms from _________ (happen)
6. The man has known a lot of Chinese since he _________ (come) to China three years ago.
7. They _________ (not go) to the market until they finish their work.
8. The policeman said that he _________ (see) a Young Pioneer help an old woman cross the road
the day before. |