You have to eat food and take exercise if you want to be thinner and healthier.A. less; le

问题补充：

You have to eat food and take exercise if you want to be thinner and healthier.

A. less; less

B. less; more

C. more;more

D. more;less

答案：

A. less; less

(答案→)B. less; more

C. more;more

D. more;less

解析：less更少；more更多。如果你想变得更瘦更健康，你必须少吃饭多锻炼。故选B。