Question

【题目】Tell your parents if you’re sad or struggling with something. They _______ not know that you’re having problems.

A. must B. should C. could D. might

Answer 1

【答案】D

【解析】

试题分析：句意：遇到问题要告诉父母，不然他们可能不知道。故用might表示“可能”。must与not连用表示 “禁止”；should应该；could能够。故选D项。