Question

【题目】My little brother didn’t go to bed until he finished _____ his homework lase night.

A. do B. doing C. to do

Answer 1

【答案】B

【解析】句意：我弟弟直到晚上做完作业才上床睡觉。考查动词形式辨析题。finish doing sth.完成做某事，固定短语；根据句意语境，可知选B。