When I try to understand ________ that prevents so many children from being happy, there seem to be three causes.
#84675
A
why it is
B
what it does
C
why it does
D
what it is
推荐题目
—       that made him unhappy? —Well, failing in his English test.
#85332
A
Where was it
B
What was it
C
How was it
D
Why was it
—_____ that he picked up French? —It was in 2010_____ he traveled in France.
#85162
A
Was it when; that
B
When was it; that
C
Was it when; when
D
When was it; when