【題目】There a slight decrease in his weight but he eats too much.

A. was B. could have been

C. had been D. could be

【答案】D

【解析】D考查情態(tài)動(dòng)詞。句意:他的體重可能輕微的下降,但他吃得太多了。表示對(duì)現(xiàn)在情況的推測(cè),could +動(dòng)詞原形,故選D。

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