Question

【题目】It usually takes John an hour ________ his homework.

A. doB. doesC. to doD. doing

Answer 1

【答案】C

【解析】

句意：做作业约翰通常花一个小时。A.do做，动词原形B.does做，单三形式；C.to do做，动词不定式形式； D.doing做，现在分词或动名词形式。根据It takes sb. time to do sth.“花费某人时间做某事”；是固定句型，故选C。