Question

【题目】In winter, we must pay attention to _________.

A. keep warm B. keep warmly

C. keeping warm D. keeping warmly

Answer 1

【答案】C

【解析】

试题分析：句意：在冬季，我们必须注意保暖。本句中to是介词，后面接名词或者动名词作宾语。本句中keep是系动词，后面接形容词作表语，故选C。