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It is obvious to the students ______ they should get well prepared for their future.

  A. as         B. which        C. whether       D. that

It is obvious to the students ______ they should get well prepared for their future.

A. as     B. which      C. whether     D. that

It is obvious to the students ______ they should get well prepared for their future.

A. as     B. which      C. whether     D. that

It is obvious to the students ______ they should get well prepared for their future.

A. as     B. which      C. whether     D. that

It is obvious to the students ______ they should get well prepared for their future.

A. as     B. which      C. whether     D. that

It is obvious to the students ________ they should get well prepared for their future.

A．a(chǎn)s 

B．which

C．whether 

D．that

It is obvious to the students ______ they should get well prepared for their future.

It is obvious to the students______they should get well prepared for their future.
A,as      b,which    C,whether      D,that

It is obvious to the students ______ they should get well prepared for their future.

It is obvious to the students ______ they should get well prepared for their future.

A. as????????? B. which???????? C. whether????????? D. that