I、 用括号中所给词的适当形式填空:
1. The buses ______ (use) a lot of oil.
2. Each of us ______ (have) strong points and weak points.
3. My daughter _________ (watch) TV every day. Sometimes she _______ (see) a film on Sunday.
4. Li Wei ________ (have) a daughter. She stays _______ in a nursery.
5. Our family _________ (be) a happy one.
6. Her mother ___________ (teach) English at a middle school.
