—Hurry up! The bus is coming. —Wait a minute. Don’t cross the street _______ the traffic lights are green.
#58477
A
until
B
after
C
while
D
since
推荐题目
__________ the story is short and there are few new words in it, it is difficult to understand.
#57853
A
Though
B
When
C
For
D
If
I enjoyed your lecture very much, ______ there were some parts I couldn’t quite understand.
#55770
A
because
B
unless
C
after
D
though
