Question

【题目】I remembered having locked the door, but I came back to .

A. take off B. put up

C. make sure D. used to

Answer 1

【答案】C

【解析】试题分析：考查动词短语。句意：我记得我锁了门，但是我回来确认一下。A. take off 起飞，脱下；B. put up 举起；C. make sure 确认；D. used to过去常常；根据词义，故选C项。