Question

【题目】I think I must keep ________ the piano at home.

A. on playB. to playC. on playingD. played

Answer 1

【答案】C

【解析】

句意：我想我必须在家继续弹钢琴。本题考查固定短语keep on doing sth. 继续做某事；坚持做某事。因此用介词on，排除B/D；on是介词，后面跟动名词，排除A。语境是：我想我必须在家继续弹钢琴。故选C。