－Are you sure you have to? It’s been so late. Make it another time?－I don’t know ________ I can do it if not now.
#31948
A
how
B
what
C
when
D
that
推荐题目
She was such a proud person that she would die ____ she would admit she was wrong.
#80005
A
rather than
B
until
C
after
D
before
I have heard a lot of good things about you I came back from abroad.
#30916
A
since
B
until
C
before
D
when
---May I go and play with Tom this afternoon, mum? ---No．You can’t go out ______ your homework is being done．
#33631
A
until
B
after
C
before
D
as
_______ small, the company has about 1000 buyers in over 30 countries.
#31109
A
Although
B
If
C
Once
D
As