问题

We worried about ______ he was in good health.
A:whether
B:if
C:that
D:what
B:if
C:that
D:what
正确答案是:
同类题型
Did the reference give the information you needed—-Yes, but it, I had to read it entirely.
Hui Ruoqi is a _________ volleyball player.She plays volleyball very _________.
is it from your home to your school—It is about twenty minutes by bike.
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