单选题
It was in that year ______ the American astronauts succeeded______landing on the moon.
A、
when, on
B、
that, on
C、
when, in
D、
that, in
【正确答案】
D
【答案解析】
[解析] 此句为强调句型的固定形式：It is/was...that。而succeed in doing为固定搭配。例：It was Edison that(who)succeeded in making an electric bulb．是爱迪生成功地制造出了电灯泡。
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