Without the earth’s atmosphere to protect them, astronauts can be exposed to intense radiation from the sun, ____ them at risk of cancer.
#90492
A
to leave
B
leaving
C
having left
D
left
推荐题目
The water companies were instructed to keep the people ______ to the polluted water.
#95384
A
from exposing
B
being exposed
C
exposing
D
from being exposed
______, I can see that those terrible events shaped me into the person I am today.
#90888
A
Having looked back
B
Looking back
C
Being looking back
D
To be looking back
I planned ________ to see you last week, but I was ill.
#98412
A
to have come
B
to come
C
to be coming
D
to have been coming