It's getting dark now.I'm afraid I _______ go.选用情态动词的适当形式填空must,needn't ,should ,may ,can ,have to,could

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It''sgettingdarknow.I''mafraidI_______go.选用情态动词的适当形式填空must,needn''t,should,may,can,haveto,couldIt''sgett

It's getting dark now.I'm afraid I _______ go.选用情态动词的适当形式填空must,needn't ,should ,may ,can ,have to,could
It's getting dark now.I'm afraid I _______ go.
选用情态动词的适当形式填空must,needn't ,should ,may ,can ,have to,could

It's getting dark now.I'm afraid I _______ go.选用情态动词的适当形式填空must,needn't ,should ,may ,can ,have to,could
must
惯用法

must

have to.....因为提到AFRAID,所以是不情愿,所以选“不得不”,也就是HAVE TO