—        I know by what time you want the project to be done?

—By the day after tomorrow.      you finish it on time?

A．May; Can

B．Must; Need

C．Could; Must

D．Need; Would

中国传统农业的主要耕作方式是 （   ）

A．刀耕火种

B．耜耕

C．石器助耕

D．铁犁牛耕