It's 2:20 and he said he'd be here at 2:30. He () be here soon.

单项选择题You know that's right, ()

A. is it
B. isn't it
C. do you
D. don't you

单项选择题In no way()from practice.

A. theory can be separated   
B. theory is separated   
C. can theory be separated   
D. has theory been separated