youeatthecorrectfood         beabletokeepfitand...

问题详情：

         you eat the correct food          be able to keep fit and stay healthy.

   A. Unless; will you                            B. Only if; you will

   C. Only if; will you                           D. Unless; you will

【回答】

C

知识点：倒装与省略

题型：选择题