5. —How did you find your sister in such a big and strange city?
—I ____ her in the railway station when I was looking for the police for help .
| A．came about | B．came out | C．came up | D．came across |
Apple's iphone4S disappointed its fans，its later success was beyond what people could expect．
| A．When | B．As | C．Unless | D．While |
With the nuclear crisis worsening in Iran, the world's attention is fixed again onis called the Middle East．
| A．which | B．that | C．what | D．it |
William found it increasingly difficult to read，for his eyesight was beginning to．
| A．disappear | B．fall | C．fail | D．damage |
Studying abroad costs so much money that it isthe reach of those with average income．
| A．below | B．over | C．within | D．beyond |
Even if your suggestions are ，at least you have tried your best．
| A．taken | B．followed | C．denied | D．banned |