题目内容
I ________ know his name.
[ ]
A.can't
B.don't
C.isn't
D.am not
答案:B
解析:
解析:
主语为I,谓语动词是know,否定句应请助动词don't. |

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题目内容
I ________ know his name.
[ ]
主语为I,谓语动词是know,否定句应请助动词don't. |