Astronauts can be affected by loneliness for they have to sit in the spacecraft
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Astronauts can be affected by loneliness for they have to sit in the spacecraft for weeks with very little ________ and no one ________．
A.to do; to talk
B.doing; to talk to
C.to do; to talk to
D.doing; to talk
试题答案
C
使用不定式作定语时，注意不定式中介词的保留。