---Would you like to go bike riding with us tomorrow? ---Sure, ____ I am busy.
#57802
A
since
B
unless
C
when
D
until
推荐题目
_____ a lot of small ads are put up on the walls, out city will be untidy.
#55173
A
Until
B
Though
C
If
D
Unless
---My sister Sally had a bad cold. __________, she went to work as usual.---She should go to see a doctor.
#55309
A
Though
B
Although
C
Because
D
However
_________many children like KFC, I think they’d better try not to eat it too often.
#58065
A
Because
B
When
C
Although
D
If