Our team tried our best, ________ we failed the match at last.
A. butB. andC. orD. while
Mr. Li will go to Guangzhou by air. His workmates are ______ at the airport.
A. turning him offB. seeing him off C. taking him off D. putting him off
The computer in 1946 in America.
A. is inventedB. was inventedC. inventsD. invented
—Why are you so happy today?
—Because I to London with my parents tomorrow.
A. fly B. am flyingC. have flownD. flew
The policeman told us __________ the street when the traffic light was red.
A. not crossB. didn’t crossC. not crossingD. not to cross
—You should ________ your son. He works harder than before.
—Thanks, I will.
A. praiseB. punishC. preventD. beg
