I wonder ( B ) you would like to come to my birthday party.I wonder ( ) you would like to come to my birthday party.A that B whether C that if D that wether为什么不选C 填if可以吗

问题描述:

I wonder ( B ) you would like to come to my birthday party.
I wonder ( ) you would like to come to my birthday party.
A that B whether C that if D that wether
为什么不选C 填if可以吗

C that if 里面的that是多余了
可以说wonder if/whether(想知道是否)