题目内容

根据句意,用括号内所给单词的正确形式填空。
1. 一I _________ (have) lunch when Bill knocked at the door.
2. He used to enjoy _________ (listen) to rock music.
3. Chinese tigers live in the south of China. They aye the _________ (old) typle of tigers living in the world.
4. The rainforests can give us a lot of _________ (use) things.
5.一Would you mind _________ (teach) me? 一Not at all.
1. was having   2. listening  3. oldest  4. useful  5. teaching
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