某工厂几个工人的工资分别为1000元、1050元,1100元和1200元,这几个数字是( )。

某工厂几个工人的工资分别为1000元、1050元,1100元和1200元,这几个数字是( )。

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Never before__________won gold medals in the Olympic Games.

Never before__________won gold medals in the Olympic Games.

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All the afternoon he worked in his study with the door______

All the afternoon he worked in his study with the door__________.

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I __________ playing tennis with John when Bob arrived.

I __________ playing tennis with John when Bob arrived.

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