must,can,may ,should,would,need和shall的区别
人气:436 ℃ 时间:2019-08-18 07:54:55
解答
1. can (could) 1)表示能力,could主要指过去时间. Two eyes can see more than one. 两只眼比一只眼看得清. Could the girl read before she went to school? 这女孩上学前能识字吗? 2)表示可能(理论上或是逻辑判...
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