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
Looking out of the window, I saw the leaves by the wind and whirled into the air.
#70452
A
ended up
B
picked up
C
gone up
D
kept up
It’s reported that the mayor who ______ his power to give jobs to his relatives was put into prison.
#78320
A
adjusted
B
absurd
C
accused
D
abused
After the 3 – day trap in the mudslide in Zhouqu(舟曲), the old man in the end.
#74781
A
passed down
B
passed by
C
passed on
D
passed away