It’s no longer a question now ______ man can land on the moon.A．thatB．whichC．whe
题型：不详难度：来源：
It’s no longer a question now ______ man can land on the moon.| A．that | B．which | C．whether | D．what |
|
答案
| A |
解析
| 考察主语从句。It是形式主语，真正的主语是后面的从句that man can land on the moon,that在句中起连接作用，没有实际的意义。 |
举一反三
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