---How is the old lady? ---____.
| A．she is fifty. | B．She’s a nurse | C．She’s much better | D．She’s Mrs white |
— Hi! John, would you like to play football with us?
— Oh，I can’t. I ___ my lesson all the morning and still need half an hour.
| A．am reviewing | B．have been reviewing |
| C．have reviewed | D．reviewed |
---- Which of these digital cameras do you like best?
---- ______. They are both expensive and of little use.
| A．None | B．Neither | C．Nothing | D．No one |
We work together to achieve our common purpose: ____ world that is safer, cleaner and healthier than ____ one we founded.
| A．the; the | B．a; 不填 | C．a; the | D．the; 不填 |
— Are you pleased with what he has done?
— It couldn’t be____. Why didn’t he put more effort into his work?
| A．any worse | B．much better | C．so bad | D．best |
Because of the heavy snow, we had to delay the visit until this weekend to the artgallery ____ in the center of our city these days.
| A．being held | B．holding | C．to be held | D．held |