Question

【题目】Don't trouble your brother. He _________ on a new computer program.

A. worksB. was workingC. is workingD. has worked

Answer 1

【答案】C

【解析】

句意：别麻烦你弟弟。他正在编写一个新的计算机程序。考查动词时态辨析。根据Don't trouble your brother.可知弟弟正在做某事，需用现在进行时，故选C。