.Sally______ a book about China last year but I don't know whether she has finished it.
| A．wrote | B．has written | C．was writing | D．had written |
It was announced that only when the examination papers were handed in ________to go out of the classroom．
| A．the students would be permitted | B．had the students been permitted |
| C．would the students be permitted | D．the students had been permitted |
As a result of the heavy snow，two-thirds of the buildings in the area.
A. need to repair B.needs to repair C.needs repairing D need repairing.
—It’s only ten minutes’ walk; I could have got there on foot.
— Yes. A taxi _______ not at all necessary.
| A．was | B．had been | C．has been | D．is |
His suggestion made me angry, but _______.
| A．making others happy | B．to make others happy |
| C．others happy | D．his advice others happy |
_______ that he might lose his job, Peter always works extra hours to please his boss.
| A．Worrying | B．Having worried | C．Having been worried | D．Worried |