—How long have you been away from your hometown?
— It has been twenty years ________ I went to college and work in Beijing.
A. unless B. though C. since D. until
— Is the boy your brother?
— It __________ be. I don’t have brothers or sisters at all.
A. mustn’t B. needn’t
C. shouldn’t D. can’t
— I will go for a trip to Canada with my uncle and aunt this weekend.
— ________.
A. Go ahead B. Help yourself
C. Have a good time D. It’s a pleasure
— Why do you look down, Jack?
— Everyone __________ me got an invitation to Lucy’s party.
A. except B. without C. besides D. through
Colorful flowers come out now. It’s wonderful for us to __________ nice flowers everywhere in spring.
A. smell B. taste C. sound D. feel
—How did you feel on the top of the mountains in Tianzhushan?
—The air there was much __________. I felt a little weak, and my heart couldn’t stand.
A. fresher B. easier C. thinner D. quieter
