He stumbled(绊倒)on the _______ ground and fell flat on his face.
| A．undeniable | B．unfair | C．unavoidable | D．uneven |
I’m sorry, but I didn’t mean to keep you waiting here for a long time. Can you ______ me?
| A．forgive | B．satisfy | C．apologize | D．remind |
—Do you mind if I open the window?
— I feel a bit cold
| A．Of course not. | B．I'd rather you didn’t. | C．Go ahead. | D．Why not |
I was really anxious about you. You____ home without a word.
| A．mustn’t leave | B．shouldn’t have left | C．couldn’t have left | D．needn’t leave |
—May I smoke here? —If you _____, choose a seat in the smoking section.
| A．should | B．could | C．may | D．must |
If you cheat in the exam, you’ll never_____ it.
| A．keep up with | B．get away with | C．get down to | D．look forward to |