There is no doubt that___ the mother is most concerned about is t_英语解答

There is no doubt that___ the mother is most concerned about is the health of her children.
A.that
B.what
C./
D.whether

人气：371 ℃　时间：2020-04-30 16:03:57

解答

B.what
what the mother is most concerned about他妈妈最关注的,做宾语