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
We should pay much attention to ______ people’s living conditions.
#97765
A
improve
B
improved
C
improving
D
improvement
What is the way George thought of ______ enough money to buy the house?
#89915
A
to get
B
getting
C
having got
D
being got
I still remember_____ to visit the Mountain Tai when I was young and I am longing to visit it again.
#94483
A
to take
B
to be taken
C
taking
D
being taken