He is recovering now. is no need to call in a doctor.
| A．It | B．There | C．This | D．That |
—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 |