题目内容

We'll keep you ______ any news.
[A]up to date with
[B]in step with
[C]in line with
[D]in terms of

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I'd like to go to the cinema, but I'm ______ to.
[A]enable
[B]disable
[C]unable
[D]able

动态微程序控制单元是________。

[A]On
[B]out
[C]off
[D]over

______nothing to say, the boy shied away from the crowd.
[A]Have
[B]Having
[C]Had
[D]Having being

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