can you tell me [ ]

选B
若是A，那么因该是how to deal with 或者是 what to do with （少介词）
若是C，那么句意不明，可以使if his mother would come here next day或者是 if his mother would come here on his birthday
若是D，那么句子缺少了一个主语，到底是谁 didn't come here

这应该是九年级的英语吧

选 B what tom said it for

A.how to do 需要it
C ifhis mother will come here next day of his birthday 时间状语错
D why didn't come here 少主语

选B
若是A，在‘do’的后面缺少宾语；
若是C，从句在时态上有点问题，应当用‘if his mother would come here’；
若是D，从句缺少了一个主语。

选B
若是A，那么因该是how to deal with 或者是 what to do with
若是C，那么句意不明，可以使if his mother would come here next day或者是 if his mother would come here on his birthday
若是D，那么句子缺少了一个主语，到底是谁 didn't come here

B