Question

【题目】The headmaster has promised ______ into the matter and give us a reply in a couple of days.

A.to lookB.lookC.lookingD.looked

Answer 1

【答案】A

【解析】

句意：校长已经承诺调查这件事，几天之后给我们一个答复。

考查不定式。look into表示“调查”，to look不定式；look动词原形；looking动词ing形式；looked过去式。此处是不定式作宾语，promise to do sth表示“承诺做某事”。故选A。