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 ______ we deal with our problems ,we can easily become unhappy.

A. Unless    B .Until      C. Though      D. Whether

 ______ we deal with our problems ,we can easily become unhappy.

A. Unless    B .Until      C. Though      D. Whether

 _____ we deal with our problems, we can easily become unhappy.

A. Unless                      B. Until                         C. Though                    D. Whether

________ we deal with our problems, we can easily become unhappy.

      we deal with our problems, we can easily become unhappy．

A．Not…until          B．If…no                C．Unless          D．After

______ we deal with our problems，we can easily become unhappy．

A．Unless             B．Until              C．Though          D．Whether