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[主观题]
Was it in 1969 ______ the American astronauts succeeded in landing on the moon?A.thatB.eve
Was it in 1969 ______ the American astronauts succeeded in landing on the moon?
A.that
B.ever since
C.when
D.of which
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Was it in 1969 ______ the American astronauts succeeded in landing on the moon?
A.that
B.ever since
C.when
D.of which
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