—I haven't got a mobile phone. 
—I think you should have . It's useful for you.
| A．one | B．this | C．that | D．it |
----- Have you ever visited the 2010 Shanghai World Expo?
-----Yes．When I was in China , I ______ it twice．
| A．have visited | B．visited | C．had visited | D．would visit |
The old lady ______ the shopkeeper of charging her too much for the goods she had bought.
| A．accused | B．charged | C．blamed | D．criticized |
I can’t imagine how he finished the relay race, ______ his foot wounded so seriously.
| A．as | B．when | C．because | D．with |
Dear me！ Just _____ at the time！ I _____ no idea it was so late.
| A．look, have | B．looking, had | C．look, had | D．looking, have |
-----Haven’t seen you for ages！ Do you still work in Guangzhou？
-------_______. It’s two years since I worked there.
| A．Yes, I have | B．Yes, I do | C．No, I haven’t | D．No, I don’t |