28. --- Is Bob still performing?
--- I’m afraid not. He is said _____ the stage already as he has become an official.
| A．to have left | B．to leave | C．to have been left | D．to be left |
Don't worry．_____ and we will complete the task you assigned to us．
| A．An hour later | B．In an hour |
| C．After an hour | D．Another hour |
A heated debate is under way on _____ Chinese media should use English terms like "GDP", "NBA" and "GSM"．
| A．which | B．that | C．whether | D．what |
East of Xiamen Island _____ several modern buildings, on whose tops we can see as far as Jinmen Island．
| A．lies | B．lay | C．stand | D．has |
Passengers on board aren't allowed _____ calls during take-off．
| A．making or receiving | B．to make or receive |
| C．to have made or received | D．having made or received |
—People in Southwest China have never experienced _____ natural disaster．
—Exactly．Let's do our bit to help them．
| A．a more severe | B．the most severe |
| C．the more severe | D．a most severe |