题目内容

【题目】be动词的适当形式填空。

1. It _____ going to rain soon.

2. I ____ having a picnic with my friend.

3. Sam ___ flying a kite in the park.

4. They ____ sing an English song.

5. ____ you cleaning your room?

【答案】is am is are Are

【解析】

Be 动词使用口诀:

I am you areis 跟着he / she /it

至于复数(we /they / you,全部都用一个are .

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