She doesn't know _________________ made her daughter so sad this morning.
#4816
A
what was it
B
why it was that
C
how that was
D
what it was that
推荐题目
____________ we can’t get seems better than ____________ we have. 
#4989
A
What; what
B
What; that
C
That; that
D
That; what
— Did Alice enjoy the concert held in Grand Theater yesterday? — Yes, she did. She _____ such an excellent concert for a long time.
#4602
A
didn’t take part in
B
wouldn’t take part in
C
hasn’t been in
D
hadn’t been in
After the long journey, the three of them went back home, ______.
#4803
A
hungry and tiredly
B
hungry and tired
C
hungrily and tiredly
D
hungrily and tired