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
I came here with your mother ________ to see you.
#4657
A
specially
B
special
C
especially
D
especial
He prefers to die rather than ________ to his enemies.
#4633
A
give up
B
give out
C
give in
D
give off
Edward, you play so well. But I ______ you played the piano. 
#5038
A
didn’t know
B
hadn’t known
C
don’t know
D
haven’t known
I’m sure Wang Lin is ____ to come to my aid this afternoon.
#4540
A
possible
B
likely
C
probable
D
maybe