Question

【题目】—My father insists . That’s harmful.

—You should try your best him.

A. on smoking; to prevent B. to smoke; preventing

C. smoking; prevent D. smoke; to prevent

Answer 1

【答案】A

【解析】句意：--我的父亲坚持吸烟。那是有害的。---你应该尽力阻止他（吸烟）。insist on doing sth, 坚持做某事；try one’s best to do sth,尽力做某事。结合句意，故选A。