Question

【题目】Gretel heard their stepmother ______ kill them.

A. to plan B. planning C. planning to D. to plan to

Answer 1

【答案】C

【解析】句意：格雷泰尔听到继母打算杀了他们。考查动词短语。Hear sb. doing sth. ：听见某人正在做某事；hear sb. do sth.：听见某人做过某事，或经常做某事；plan to do sth.：打算做某事；结合句意和语境可知选C。