题目内容
---___you ___the window?—Yes, I am.
A.Do, clean | B.Is, cleaning | C.Are, cleaning | D.Do, cleaning |
C
由答语知此一般疑问句要用be领起,当主语是第二人称时,be动词为are
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题目内容
A.Do, clean | B.Is, cleaning | C.Are, cleaning | D.Do, cleaning |