Question

【题目】You ______ ask your teacher for help when you can't do well in your schoolwork.

A. should B. mustn't C. would D. couldn't

Answer 1

【答案】A

【解析】句意：当你功课不好时，你应该向你的老师寻求帮助。A. should应该；B. mustn't禁止；C. would愿意；D. couldn't不能。结合语境可知，此处是表示建议而不是命令，故答案为A。