想多益阅读两题(如图)

楼主: a37525752005 (nicknick)   2017-03-15 22:03:15
141.这题是因为前面的which is被省略掉吗

146.这题是因为固定用法吗

楼主: a37525752005 (nicknick)   2017-03-16 12:22:00
感谢大大们小弟懂了

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