---Alice, what’s wrong with you? You look so worn out.
---Nothing serious. I        my new house all day and I’m afraid I won’t finish until tomorrow afternoon.
A．have whitewashedB．a(chǎn)m whitewashing
C．have been whitewashingD．shall be whitewashing
C
考查時態(tài)：句意：---愛麗絲，你怎么了？你看起來很疲勞啊。--沒什么嚴重的，我一天一直在粉刷房子，恐怕明天下午才能完成。用現(xiàn)在完成進行時，表示動作從過去一直延續(xù)到現(xiàn)在，可能還要繼續(xù)。選C。
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