Question

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

A. was B. could have been

C. had been D. could be

Answer 1

【答案】D

【解析】D考查情态动词。句意：他的体重可能轻微的下降，但他吃得太多了。表示对现在情况的推测，could +动词原形，故选D。