--This kind of sports is exciting．
--Yes，but it's dangerous．One can't do it ____ he or she has got some training．
| A．if | B．after | C．when | D．Unless |
It is _________ mobile phone he sent me. I’ve never seen _________ better one before.
| A．a; a | B．the; a | C．a; the | D．the; the |
-------- Selina hasn’t paid for the school things , has she ?
------- _________________. Her father will pay for it .
| A．Yes , she has | B．No , she hasn’t | C．Yes , she did | D．no , she didn’t |
---- _________ useful advice she gave you ! You should listen to her.
| A．How | B．How a | C．What | D．What a |
The 30th Olympic Games will be held in London _________ July 27 to August 12th , 2012 .
| A．on | B．in | C．at | D．from |
The boy asked his father ______________________ .
| A．where it happens | B．when did it happen |
| C．what did it happen | D．how it happened |