什么时候用be动词,什么时候用does/do?有什么区别么?Can I help you,sir?Yes,I boughe this radio here yesterday,but it___.A.didn't work B.won't wrok C.can't wrok D.doesn't work我知道选D.但是为什么不是C?

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什么时候用be动词,什么时候用does/do?有什么区别么?Can I help you,sir?Yes,I boughe this radio here yesterday,but it___.A.didn't work B.won't wrok C.can't wrok D.doesn't work我知道选D.但是为什么不是C?
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什么时候用be动词,什么时候用does/do?有什么区别么?Can I help you,sir?Yes,I boughe this radio here yesterday,but it___.A.didn't work B.won't wrok C.can't wrok D.doesn't work我知道选D.但是为什么不是C?
什么时候用be动词,什么时候用does/do?
有什么区别么?
Can I help you,sir?
Yes,I boughe this radio here yesterday,but it___.
A.didn't work B.won't wrok C.can't wrok D.doesn't work
我知道选D.
但是为什么不是C?

什么时候用be动词,什么时候用does/do?有什么区别么?Can I help you,sir?Yes,I boughe this radio here yesterday,but it___.A.didn't work B.won't wrok C.can't wrok D.doesn't work我知道选D.但是为什么不是C?
it是单三,应该用does not work