题目内容

【题目】Read and write.用所给单词的适当形式填空。

1. Where ________ (be) my dog? It ________ (be) here five minutes ago.

2. You should ________ (keep) quiet. Your mother ________ (sleep).

3. Sam ________ (take) a walk with his grandfather every day. But this morning he didn’t, because he ________ (be) sick.

4. You must ________ (go) to see the dentist. Your ________ (tooth) are too bad.

【答案】1. is was 2. keep is sleeping 3. takes was 4. go teeth

【解析】

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