All Mrs Smith's efforts to tidy the room were _____ because her grandson soon made a mess of it again.
| A．at all costs | B．at random |
| C．in vain | D．in return |
After the heavy mudslide happened in Sichuan, hundreds of newspaper reporters were sent to ____ the natural disaster.
| A．describe | B．cover | C．witness | D．experience |
—I don’t know what I _______ without the suitcase you lent me.
—Glad to have been of some help to you.
| A．would have done | B．would do |
| C．should have done | D．should do |
The way you thought of _______ the math problem is greatly creative .
| A．solving | B．settling | C．to solve | D．to handle |
The picture of advertisement was well taken while its ______was badly written.
| A．content | B．report | C．text | D．article |
With the rapid development of the Internet, _______ communication is done by regular mail.
| A．less | B．more | C．little | D．few |