单项选择题

Since he is a foreign correspondent, he is quite ______the international affairs.

[A] well up in
[B] well up to
[C] well in
[D] well off

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单项选择题

You may take ______of these seats for there are few persons here.

[A] anyone
[B] any one
[C] every
[D] no one

单项选择题

______, many good opportunities were neglected in my life.

[A] In the vicinity
[B] In retrospect
[C] In chorus
[D] In essence

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