__Mary happy today?I don't think so.She __ look happy this morning.A.Is isn't B.does ,doesn't C.is ,doesn't

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__Maryhappytoday?Idon''tthinkso.She__lookhappythismorning.A.Isisn''tB.does,doesn''tC.is,doesn''t__Maryha

__Mary happy today?I don't think so.She __ look happy this morning.A.Is isn't B.does ,doesn't C.is ,doesn't
__Mary happy today?I don't think so.She __ look happy this morning.
A.Is isn't B.does ,doesn't C.is ,doesn't

__Mary happy today?I don't think so.She __ look happy this morning.A.Is isn't B.does ,doesn't C.is ,doesn't
C
happy是形容词 要与系动词连用 is
look是动词 否定式 要用到do 叫上not 表否定

选C be happy 因为happy 是形容词,之前用be动词提问;look则用do提问,而she是第三人称单数,所以用does

选C be happy 开心 玛丽今天开心么? 我不这么认为,她今天早晨看起来不怎么开心。

废话少说 就是C