their final medical check, the astronauts boarded their spacecraft．
#96145
A
Received
B
Being received
C
To receive
D
Having received
推荐题目
I’d rather have a room of my own, however small it is, than _________ a room with others.
#88636
A
to share
B
share
C
shared
D
sharing
—You were brave enough to raise objection at the meeting.—Well, now I regret _______ that.
#98621
A
to do
B
to be doing
C
to have done
D
having done
The rules of our school don’t allow ______ at school. That is to say, Nobody is allowed _____ here.
#98553
A
to smoke; to
B
smoking; smoking
C
to smoke; smoking
D
smoking; to smoke
The experts are trying to find ways of ____ the animals in danger.
#96792
A
rescuing
B
dragging
C
seizing
D
watching out