Question

【题目】____ the window well before _____ to bed.

A. Close; to go B. To close; to go C. Close; going D. To close; go

Answer 1

【答案】C

【解析】

句意“在睡觉之前把窗户关好”。第一空处考察祈使句，祈使句以动词原形开头，排除B和D。第二空前before为介词，译为“在……之前”，后用doing形式，故选C。