___ you know the rules of swimming, you will be able to swim well.
#80368
A
Before
B
While
C
Though
D
Once
推荐题目
The teacher asked the two students to discuss the question in a low voice______ they should bother the others.
#31943
A
so that
B
in case
C
in order that
D
now that
Newspapers, radios, the Internet can often help to solve problems by _____ attention to situations _____ help is really needed.
#34371
A
taking; which
B
drawing; where
C
paying; that
D
attracting; /
_____ computers are convenient to us in daily life, it may also cause other problems.
#33235
A
Whether
B
Because
C
As
D
While
.It will not be ________ we can meet again.
#33845
A
long before
B
before long
C
soon after
D
shortly after
