Don’t put off today’s work till tomorrow. I mean today’s work today.A. may doB. must doC

问题补充：

Don’t put off today’s work till tomorrow. I mean, today’s work today.

A. may do

B. must do

C. may be done

D. must be done

答案：

A. may do

B. must do

C. may be done

D. must be done

解析：考查情态动词。句意 不要把今天的工作推到明天，我的意思是，今天的工作必须今天做完,must 表示必须，工作被做，用被动语态。所以选D项。