—Your colleague’s spoken English is quite good，Amy.
—No wonder，as she________in the USA for two years.
A．worked B．has been working
C．had worked D．has worked
—What’s that noise，John?
—Sorry，Linda.I forgot to tell you.The school library________.
A．is rebuilt B．is being rebuilt
C．was rebuilt D．has been rebuilt
Every year a flood of farmers arrive in Shenzhen for the moneymaking jobs they ________ before leaving their hometowns.
A．promised B．were promised
C．have promised D．have been promised
By the time Pierce comes back from the meeting，we________here for three hours.
A．will be waiting B．is waiting
C．will wait D．will have waited
I was out of town at the time，so I don’t know exactly how it ________.
A．was happening B．happened
C．happens D．has happened
—Tom，you’ve got an A in the final English exam.Congratulations!
—Thanks.But I never thought the result came out so fast.The papers________when I left the teacher’s office just now.
A．had been marked
B．were still being marked
C．are still marking
D．had been marking
