Question

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

A．Only if; will you

B．Only if; you will

C．Unless; will you

D．Unless; you will

Answer 1

A

考查倒装句。Only放在句首，强调状语的时候，后面的主句使用部分倒装。本题only放在句首，强调条件句if you eat the correct foods。句意：只有你吃合适的食物，你才能保持健康。