He tried his best to solve the problem, difficult it was. A. however B. no matter C. whatever D. although 查看更多

 

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He tried his best to solve the problem,________ difficult it was.

A.however             B.no matter

C.whatever            D.although

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He tried his best to solve the problem, ______ difficult it was.

   A. however        B. no matter          C. whatever       D. although

 

 

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 He tried his best to solve the problem ,       difficult it was .

A. however      B. no matter        C. whatever     D. although

 

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He tried his best to solve the problem, _____ difficult it was .

[     ]

A. however
B. no matter
C. whatever
D. although

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He tried his best to solve the problem, _______ difficult it was.

   A. however              B. no matter                  C. whatever                  D. although

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