Some people get in touch with each other by mobile phones__________ others keep contact with each other by e-mail.
| A．when | B．before | C．while | D．since |
—I've got some wonderful news.We have been invited to the palace ball.
—Really？______.
| A．I don't believe so | B．I believe not |
| C．I can't believe it | D．I don't believe it |
The people，______ had been damaged by the flood，were given help by the Red Cross.
| A．all whose homes |
| B．all their homes |
| C．all of their homes |
| D．all of whose homes |
The village has developed a lot ______ we learned farming two years ago.
| A．when | B．which | C．that | D．where |
Over a hundred children ______ parents were killed in the Wenchuan earthquake have been adopted and taken good care of by kindhearted couples.
| A．who | B．that | C．whose | D．which |
Production at the factory was ______ for as long as 10 hours because the electricity supply was cut off.
| A．disturbed | B．bothered |
| C．interrupted | D．unloaded |