I wanted an answer but I wondered ( ) there was any.A.why B.that _英语解答

I wanted an answer but I wondered ( ) there was any.
A.why B.that C.if D.how
填啥,讲明原因

人气：326 ℃　时间：2020-06-20 23:21:43

解答

if
我想得到回复,但不知道是否会有
if是是否