Don't put off till tomorrow you should do today!A. what B. whenC. that D. which

问题补充：

Don put off till tomorrow you should do today!

A. what

B. when

C. that

D. which

答案：

(答案→)A. what

B. when

C. that

D. which

解析：答案：A。句意：不要把你今天应该做的事情推迟到明天。what引导宾语从句，在从句中作do的宾语。