he has been working so hard . __________ he could answer such a difficult question.
—Do you mind if I open the window? ----_____I feel a bit cold. Of course not B.I’d rather you didn’t C.Go ahead D.Why not?
---It’s wrong for a student to follow ___his teachers say. ---- It’s true. I can’t agree _______.
If the teachers want to buy _____, it will take the university much money.
You will ______ sooner or later if you keep working like that.
In the USA, the students who study business is more than _______ those who study agriculture.