Question

【题目】He _____ go out with his parents, but now he ______ staying at home alone.

A.used to; used to B.is used to; used to

C. is used to; is used to D. used to; is used to

Answer 1

【答案】D

【解析】

试题分析：句意：他过去常常和父母外出，但是现在他习惯于独自待在家里。过去常常做某事：used to do sth.习惯于做某事：be used to doing sth.前空后go是原形，后空后staying是动名词，故选D。