Question

【题目】It was so cold that they kept the fire ______ all night.

A. to burn B. burn

C. burning D. burned

Answer 1

【答案】C

【解析】考查非谓语动词。have sth./sb. doing让某人或某物一直保持某个动作或状态。本句意为：天真冷以至于他们整个晚上都点着火。