---- Hurry up ! The bus is coming . ----- Wait a minute. Don’t cross the street_________ the traffic lights are green.
#55728
A
since
B
after
C
while
D
until
推荐题目
--I can’t solve the math problem because it is too difficult. What should I do? -- _________ ask the teacher for help?
#55905
A
How about
B
What about
C
Why don’t you
D
Why not you
I don’t have to introduce him to you ________ you know the boy..
#57792
A
until
B
unless
C
since
D
but
Mr. Wang is always the first one to be in the office ________ he lives far from his company.
#55834
A
although
B
because
C
when
D
as
