作业帮It was still a question _____ man can go to the moon.
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It was still a question _____ man can go to the moon.
that or whether?
that or whether?
whether
在所有这种带有question或doubt之类的句子中 只要是语义带有疑问的 都用whether 语义是肯定的就用that
如There's no doubt that he'll come tonight.（毫无疑问他今天晚上会来.）
It's a question whether he'll come (or not).（他来不来还是个问题呢.）只有连接词用whether的时候才能加or not .
在所有这种带有question或doubt之类的句子中 只要是语义带有疑问的 都用whether 语义是肯定的就用that
如There's no doubt that he'll come tonight.（毫无疑问他今天晚上会来.）
It's a question whether he'll come (or not).（他来不来还是个问题呢.）只有连接词用whether的时候才能加or not .
It was still a question _____ man can go to the moon.
It's no longer a question _____ man can go to the moon.
It's no longer a question now _____ man can land on the moon
It is no longer a question now ( )man can land on the moon.A
it is no longer a question now () man can land on the moon.
It's no longer a question now that man can land on moon
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It was dark,but （） the light of the moon,I saw a man lying i
it is for the man who can land on the moon A how wonderful B