Yang Liwei showed the flags of China and the United Nations, ________ the wishes of Chinese people to use space peacefully.
A. expressing B. expressed
C. to express D. express
-- The last one ________ pays the meal. --- Agreed.
A. arrived B. to arrive
C. arrives D. arriving
She had to leave school_______ her family couldn’t afford her education.
A. although B. unless
C. because D. so
The old man has retired from the factory. He _____ there for 30 years.
A. works B. worked
C. has worked D. was working
— I don’t mind telling you what I know.
— You _______. I can manage it myself.
A. mustn’t B. ought not to
C. can’t D. don’t have to
—Have you heard of the accident on this road last night?
—Yes. And there ________ three accidents here so far this year.
A. are B. were
C. have been D. had been
