He has been acting strangely these days. I can’t his actions at all.A. account forB. ask

问题补充：

He has been acting strangely these days. I can’t his actions at all.

A. account for

B. ask for

C. call for

D. stand for

答案：

(答案→)A. account for

B. ask for

C. call for

D. stand for

解析：本题考查动词短语辨析。句意为：这些天他表现很古怪。我根本不能解释他的行为举止。account for解释，说明……的原因；ask for请求，要求；call for要求，需要；stand for代表，象征，表示。