题目内容
【题目】People __________travel by plane years ago. ( )
A.don't
B.doesn't
C.didn't
【答案】C
【解析】
句意为：人们多年前不乘飞机去旅行。“years ago”意为“多年前”，句子用过去时，否定形式为did not，缩写为didn't，故选C。
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题目内容
【题目】People __________travel by plane years ago. ( )
A.don't
B.doesn't
C.didn't
【答案】C
【解析】
句意为：人们多年前不乘飞机去旅行。“years ago”意为“多年前”，句子用过去时，否定形式为did not，缩写为didn't，故选C。