All the task ahead of time, they decided to go on holiday for a week.
A. had been finished B. were finished
C. having been finished D. been finished
The doctor had almost lost hope at one point, but the patient finally .
A. pulled out B. pulled through C. pulled up D. pulled over
The new secretary is and therefore the manager is satisfied with her work.
A. effective B. efficient C. specific D. sufficient
— 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
