Surely Mr. Peterson have forgotten to buy presents for his beloved family members. After all, it was Christmas!
A. shouldn’t
B. mustn’t
C. can’t
D. needn’t
网友回答
A. shouldn’t
B. mustn’t
(答案→)C. can’t
D. needn’t
解析: 考查情态动词。根据后面的句子,可知Peterson不可能忘记买礼物的,而must表推测不能用于否定句,故选C。