情态动词的肯定回答和否定回答
情态动词的肯定回答和否定回答
日期:2008-07-16 18:39:29 人气:1
must和need相同:Yes,... must. No,... needn't/don't have to
may和can could相同:Yes,... may/can/could. No,... mustn't/...'d better not/can't.
shall:Yes,... can/may. No,... can't.
should:Yes,... should. No,..