-What do you think made Grace so happy?-( ) to visit Peking Unive_英语解答

-What do you think made Grace so happy?
-( ) to visit Peking University
A Being invited
B Invited
为什么选第一个?

人气：134 ℃　时间：2019-09-21 06:44:21

解答

do you think 是插入语可以略去.
what .made grace happy==缺主语啊.
动名词做主语撒.