【单选题】
I don’t think you’ll be able to understand this formula(公式)___ you finish school.
【单选题】
The bosses give them low wages, because it is expected that you will ( ). If you don’t, the service person can’t earn a living.
③
make out the difference
【单选题】
If you don’ t go to his birthday party next Friday,_____.
【单选题】
When you have finished with that video tape, don’t forget to put it in my drawer, ---_____?
【单选题】
Don’t take any action until you are fully _____ with the situation there.
【单选题】
Don’t forget the day ______you were received into the Youth League.
【单选题】
Don’t go there this afternoon, I’d rather you _____ tomorrow.
【单选题】
Why not buy a cheaper one, ___ you don’t have enough money?
【单选题】
_______ hard work, you don’t have much chance of success.
【单选题】
-I hope you don’t mind my pointing out your mistakes.- ____.