【2015·安徽】— Can you come to a party on Saturday, Peter?
— Oh, ______I'm already going out, I'm afraid.
| A．what a pity! | B．don't ask! |
| C．how come? | D．so what? |
By the time she ________ tomorrow, the work ________.
| A．arrives ; will be finished |
| B．arrives ; will have been finished |
| C．will arrive ; will have been finished |
| D．arrives ; will have finished |
Some people waste a lot of food ________ others haven’t enough to eat.
| A．however | B．when | C．as | D．while |
. School children must be taught how to deal with dangerous ________.
| A．states | B．conditions | C．situations | D．positions |
The survey shows that ______ of the population in the country ______ adults.
| A．three fifths; is | B．three fifths; are |
| C．three fifth; are | D．three fifth; is |
. The workers do nothing but _______ tea and talk to each other.
| A．drinking | B．to drink | C．drink | D．are drinking |