28．This river has changed its course many times . It always located where it at present. A. isn’t; is B. isn’t; will be C. wasn’t; is D. wasn’t; has been 【查看更多】

 

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This river has changed its course many times. It _________ always located where it ________ at present.

A．isn’t; is       B．isn’t; will be      C．wasn’t; is         D．wasn’t; has been

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This river has changed its course many times．It ________ always located where it ________ at present．


  1. A.
    isn’t; is
  2. B.
    isn’t; will be
  3. C.
    wasn’t; is
  4. D.
    wasn’t; has been

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This river has changed its course many times．It ________ always located where it ________ at present．

[　　]

A．isn’t; is

B．isn’t; will be

C．wasn’t; is

D．wasn’t; has been

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This river has changed its course many times．It ________ always located where it ________ at present．

[　　]

A．isn’t; is

B．isn’t; will be

C．wasn’t; is

D．wasn’t; has been

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This river has changed its course many times．It ________ always located where it ________ at present．

[　　]

A．isn’t; is

B．isn’t; will be

C．wasn’t; is

D．wasn’t; has been

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