Question

【题目】---I wonder why he ______ so strangely these days.

---Recent pressure at study may account for his behavior.

A. was acting B. acted

C. is acting D. acts

Answer 1

【答案】C

【解析】考查动词的时态。句意：——我纳闷最近这些天他为什么行动诡异。——工作的压力也许能够解释他的这种行为。根据时间状语these days可知，“act”这一动作表示现阶段一直存在的动作，用现在进行时。故选C。