All the students are busy English in the morning.A. practising to readB. practising readi

问题补充：

All the students are busy English in the morning.

A. practising to read

B. practising reading

C. to practice to read

D. to practice reading

答案：

A. practising to read

(答案→)B. practising reading

C. to practice to read

D. to practice reading

解析：考查固定结构。Be busy doing sth .忙于做某事；practice doing sth .练习做某事。所以选B。