Question

— The doctor is busy ________ his work.

A．at

B．for

C．with

D．on

Answer 1

C

试题分析：句意：这个医生正在忙他的工作。is busy with sth忙于某事，固定结构，故选C
点评：短语的固定句型是中考的必考语言点，多数出现在单项选择和完形填空中。be busy with sth="be" busy doing sth某与做某事，平时加强记忆即可。