Question

【题目】They have just got here. They _____________ know many people.

A. can't B. mustn't C. shouldn't D. needn't

Answer 1

【答案】A

【解析】句意：他们刚到这里，他们不可能认识很多人。A. can't不可能；B. mustn't禁止，千万别；C. shouldn't不应该；D. needn't不必。结合语境理解可知，此处是表示一种否定的推测，故答案为A。