Lily’smotheristoobusy

问题详情：

Lily’s mother is too busy _______ housework _________ her with her homework.

A. to do; helping    B. doing; helping    C. to do; to help    D. doing; to help

【回答】

D

【解析】句意：莉莉的母亲太忙于做家务而无法帮助她做作业。be busy doing sth忙于做某事，too+形容词/副词+to do sth“太……而不能做某事”，故选D。

知识点：固定句型

题型：选择题