语法词汇练习 语法大全 语法详解 英语听力 
–You can’t imagine _______ great fun chatting online is.– Really? But it may cause you a lot of trouble.
#57542
A
what
B
how
C
why
D
whether
下一题
推荐题目
Don’t stop working _____ twelve. 
#58157
A
to
B
at
C
when
D
until
Lucy fell asleep_______ she was listening to music.
#58200
A
before
B
while
C
after
D
as soon as
Some people won’t realize the importance of their health _____they have lost it.
#56772
A
after
B
when
C
until
D
as
 --_______ will the meeting last? --_______ they reach an agreement.
#55956
A
How long; Not until
B
When; Not until
C
How long; Until
D
When; Until
I met a friend of mine       I was walking in the park.
#56579
A
before
B
when
C
because
D
until