Scientists _______ a lot of experiments on animals, hoping to find and effective way to cure the patients who had AIDS.
#70454
A
carried on
B
carried out
C
carried away
D
carried off
推荐题目
Don’t be so discouraged. If you ______ such feelings, you will do better next time.
#71078
A
carry on
B
get back
C
break down
D
put away
Studies show that the things that contribute most to a sense of happiness cannot be bought，______ a good family life，friendship and work satisfaction.
#82376
A
as for
B
in view of
C
in case of
D
such as
Sam some knowledge of the computer just by watching others working on it．
#71229
A
brought up
B
looked up
C
picked up
D
set up
As a child, I was _________to keep quiet when my parents were discussing something, while parents nowadays often ask for their children’s opinions.
#72847
A
demanded
B
hoped
C
forbidden
D
required
You will have an accident if you don’t ______, for the road is icy.
#73037
A
make out
B
pick out
C
bring out
D
watch out