----- Mr. Chen is a teacher and works very hard. -----_______ his wife.
He is so smart a student that he can make himself________ in simple English. That’s the reason why we like to talk with him.
The manager of the company asked ________.
It is so urgent that I _______for Shanghai tomorrow.
Only in this way _______ the solution to the problem.
Don't forget ______ the light when you leave the office.