Dentists always tell people too many sweets.A. to eatB. not to eatC. eatingD. not eat

问题补充：

Dentists always tell people too many sweets.

A. to eat

B. not to eat

C. eating

D. not eat

答案：

A. to eat

(答案→)B. not to eat

C. eating

D. not eat

解析：动词不定式的否定式一般是在不定式符号to的前面加not，tell后面接带to的不定式做宾语补足语，故选B。