语法词汇练习 语法大全 语法详解 英语听力 
He met many problems           he was going over his lessons.
#41397
A
before
B
as soon as
C
since
D
while
下一题
推荐题目
_______parents say and do has a life-long effect on their children.
#73005
A
That
B
Which
C
What
D
As
Ah，it was the place_______we once dug the reservoir.
#71568
A
which
B
where
C
that
D
/
Some researchers believe that there is no doubt______a cure for AIDS will be found.
#67655
A
whether
B
that
C
what
D
which
The time is not far away____modern communications will become widespread in China’s vast countryside.
#71600
A
as
B
until
C
before
D
when
The film “Inception” is rather difficult to understand. _____ the director tries to show in the film is unknown to the general watchers.
#68857
A
That
B
What
C
Whether
D
Where