Question

You should have a good rest______.

A to stay health B staying health

C to stay healthy D staying healthy

花落谁家呀？再说说理由吧！

Answer 1

选C。

句意是“你应该好好休息一下保持健康”
休息的目的是保持健康，用动词不定时做目的状语，所以排除B D

又因为stay可以是联系动词，后面用形容词作表语，health 是名词，healthy是形容词。

所以···

Answer 2

C 动词不定式作目的状语（好好休息的目的是为了保持健康。） STAY是系动词，后接形容词

Answer 3

A.目的：to do

Answer 4

C to stay healthy
不定式作目的状语。stay+形容词 stay healthy=keep healthy

Answer 5

C
stay healthy=stay fit保持健康
stay+adj.