Was it in 1969 ______ the American astronauts succeeded in landing on the moon?A

游客2023-09-27 16

问题 Was it in 1969 ______ the American astronauts succeeded in landing on the moon?

选项 A、that
B、ever since
C、when
D、of which

答案 A

解析强调句(It is/was…that…)，故用that。如果强调句中的地点或时间状语，连接词仍为 that，通常不用where或when。

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