Question

【题目】The little boy kept ________ questions about the spaceship while we were in the Space Museum.

A. askB. askedC. to askD. asking

Answer 1

【答案】D

【解析】

句意：当我们在太空博物馆时，这个小男孩一直在问关于宇宙飞船的问题。

考查固定搭配。ask问，动词原形；asked过去式；to ask不定式；asking动词ing形式。keep doing sth表示“持续做某事”，固定搭配。故选D。