Question

【题目】She usually ______ her ______ before ______ to bed. ( )

A.brush; tooth; goB.brush; teeth; goingC.brushes; teeth; goingD.brushed; tooth; go

Answer 1

【答案】C

【解析】

句意为她通常在睡觉前刷牙，该句时态为一般现在时，主语she为单数第三人称，谓语动词应该用brush的单三形式brushes，brush one’s teeth意为刷牙，介词before（在……之前）后应接动名词，go的动名词形式为going，ABD均不符合题意，故选C。