It is thought that a new system the place of the old one in that company. But things are getting worse and worse.A．must have takenB．will takeC．won’t takeD．had taken 题目和参考答案——青夏教育精英家教网—

题目内容

It is thought that a new system _____ the place of the old one in that company. But things are getting worse and worse.

A．must have taken

B．will take

C．won’t take

D．had taken

略

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