— Could you meet me at the airport?
— I'd like to，but I'm afraid I ______ a very important meeting when you return.
| A．am attending | B．was attending |
| C．will be attending | D．will have attended |
—Grace, when shall we take a walk?
—After I finish________ the dishes.
| A．wash | B．washing |
| C．washed | D．to wash |
I really wonder__________ he has posted me many parcels_________ we didn't work together.
| A．how ,after | B．why, when |
| C．when, before | D．why, since |
— How come a simple meal like that costs so much?
— We had ______in your bill the cost of the cup you broke just now.
| A．added | B．included |
| C．contained | D．charged |
The black horse is___________ of the pair.
| A．the strongest | B．the stronger |
| C．the strong | D．quite strong |
He’ll accept the job _______the salary is very low. After all he needs money.
| A．unless | B．if not |
| C．though | D．so long as |