Her sister left home in1998, and since.
| A．had not been heard of | B．has not been heard of |
| C．had not heard of | D．has been heard of |
The news reporters hurried to the airport, only _________ the film stars had left.
| A．to tell | B．to be told | C．telling | D．told |
The flu is believed _________ by viruses that like to reproduce in the cells inside the human nose and throat.
| A．causing | B．being caused | C．to be caused | D．be have caused |
Helen had to shout _________ above the sound of the music.
| A．making herself hear | B．to make herself hear |
| C．making herself heard | D．to make herself heard |
－CanI get you a cup of tea’
－____________ .
| A．That’s very nice of you | B．With pleasure |
| C．You can，please | D．Thank you for the tea |
The answerthe teacher，she asked the little boy to try a second time．
| A．disappointed | B．disappointing |
| C．being disappointed | D．having been disappointed |