It is ______ world of wonders, ______ world where anything can happen.
| A．a; the | B．a; a | C．the; a | D．不填; 不填 |
Teenagers __________ their health because they play computer games too much.
| A．have damaged | B．are damaging | C．damaged | D．will damage |
I __________ my guest off at the station tomorrow.
| A．am seeing | B．see | C．saw | D．have seen |
They __________ to work until they get a rise.
| A．were not going back |
| B．are going back |
| C．are to go back |
| D．are not going back |
Ladies and gentlemen, please fasten your seat belts. The plane __________.
| A．takes off |
| B．is taking off |
| C．has taken off |
| D．took off |
I've won a holiday for two weeks to Florida. I __________ my mum.
| A．am taking |
| B．have taken |
| C．will have taken |
| D．take |