问题

Was it in 1969 ____ the American astronaut succeeded ____ landing on the moon?
A:when; on
B:that; on
C:that; in
D:when; in
B:that; on
C:that; in
D:when; in
正确答案是:
同类题型
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___in the leg, the soldier was sent to hospital[ ]
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ng got up very _______,so he came toschool half an hour ______.
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