问题描述：
现在完成时的否定句是怎么改的
he has gone to moscow
改否定句：
1：he hasn't gone to moscow
2：he don't has gone to moscow
------------------------------
那句对,都对没?还是都错,
he has gone to moscow
改否定句：
1：he hasn't gone to moscow
2：he don't has gone to moscow
------------------------------
那句对,都对没?还是都错,
问题解答：
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