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       ，and the problem would be straightened out.

A.A bit more effort                                                 B.Having a little effort

C.If you have a bit more effort                          D. There being a little effort

________________________, and the problem would be straightened out（解決）.

   A. A bit more effort                    B. Having a little effort

   C. If you have a bit more effort           D. There being a little effort

________________________, and the problem would be straightened out（解決）.

   A. A bit more effort                    B. Having a little effort

   C. If you have a bit more effort           D. There being a little effort