Question

【题目】Tom prefers running along the river ________himself healthy.

A. keeping B. keeps C. to keeping D. to keep

Answer 1

【答案】D

【解析】

试题分析：句意：汤姆更喜欢沿河跑步来保持身体健康。动词不定式可以作目的状语。故答案为D。