Be careful when you surf the Internet．If you download a virus into your computer ______, you will not open your files．
#27181
A
on purpose
B
by accident
C
at random
D
on average
推荐题目
He likes to sleep ______ all the windows _____.
#27377
A
with; open
B
with; opened
C
while; open
D
as; opening
Jenny nearly missed the fight __________doing too much shopping
#26437
A
as a result of
B
in terms of
C
regardless of
D
on top of
Little children should go to school to learn something. ______，they should learn how to behave well in social life.
#25880
A
After all
B
In all
C
At all
D
Above all
In Hangzhou Mr. Black was so struck＿＿＿＿the beauty of nature that he stayed＿＿＿another night.
#28752
A
at； on
B
with； at
C
for； in
D
by； for