(1)They have a music class on Friday.(改为否定句) They ( ) a music class on friday.

如题所述

They don't have a music class on Firday.
句子强调的是一般现在时,改否定句时应在动词前加助动词。
又因为是第三人称单数形式,所以用助动词don't。

希望对你有帮助,望采纳。
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第1个回答  2012-05-13
They ( haven't) a music class on friday.
第2个回答  2012-05-13
don't have