( )A:Could you tell me__?B:I'm not sure.选项在下面:A.how many people have been out of hospital B.when his son comes home c.when did his son come home D.when his son come home

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( )A:Could you tell me__?B:I'm not sure.选项在下面:A.how many people have been out of hospital B.when his son comes home c.when did his son come home D.when his son come home

( )A:Could you tell me__?B:I'm not sure.选项在下面:A.how many people have been out of hospital B.when his son comes home c.when did his son come home D.when his son come home
( )A:Could you tell me__?B:I'm not sure.选项在下面:
A.how many people have been out of hospital B.when his son comes home c.when did his son come home D.when his son come home

( )A:Could you tell me__?B:I'm not sure.选项在下面:A.how many people have been out of hospital B.when his son comes home c.when did his son come home D.when his son come home
B,应该用陈述句语序

B.when his son comes home

B 他的回答是不确定,那么就不能用过去时,排除C,D选项的动词应该加S,A选项好像和后面的选项没有一致性,故排除