Question

【題目】—Why are your eyes so red? You _______ have slept well last night.
—Yeah, I stayed up late writing a report.
A.can't
B.mustn't
C.needn't
D.won't

Answer 1

【答案】A
【解析】句意：——你眼睛怎么這么紅？你昨晚一定沒睡好吧。——我熬夜寫報告。根據why are your eyes so red？可以得出對方一定沒有睡好，故用can’t（不可能）。mustn’t（禁止，不準）；needn’t（不必）；won’t（不會）。