问题
选择题
Mr. Mike doesn’t understand ________ made his wife so upset this morning.
A.what was it
B.why it was that
C.how that was
D.what it was that
答案
D
understand 后面是一个宾语从句,从句中缺主语,同时又是强调结构的疑问形式用在宾语从句中。
Mr. Mike doesn’t understand ________ made his wife so upset this morning.
A.what was it
B.why it was that
C.how that was
D.what it was that
D
understand 后面是一个宾语从句,从句中缺主语,同时又是强调结构的疑问形式用在宾语从句中。