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
— What can I do for you, sir?— I want _____.
#4597
A
a dollar’s worth of candy
B
candy a dollar’s worth
C
a dollar worth of candy
D
a dollar-worth candy
As _______ unemployment is very high at the moment, it’s very difficult for people to find _______ work.
#4838
A
the, 不填
B
不填，不填
C
the, a
D
an, the