He wanted to know _______
#38686
A
why he bought the present for
B
which room he lived in the hotel
C
who he had travelled with 
D
who has been chosen to be the chairperson
推荐题目
I didn’t know  ________.
#38751
A
when did the plane take off
B
when the plane took off
C
when the plane takes off
D
when does the plane take off