You will see what great benefit the computers you own can be _____ every time we use them.
| A． at | B．of | C．for | D．on |
—— Could you tell me his telephone number?
—— _____the phone book and find it out yourself.
| A．Look up | B．Search for | C．Refer to | D．Go through |
Don’t all stand up together! ________, please.
| A．Each at one time | B．One at a time | C．One by one time | D．One for each time |
______from space, the earth, with water _____seventy percent of its surface looks like a blue ball.
| A．Seen; covered | B．Seen; covering | C．Seeing; covered | D．Seeing; covering |
Roads in this mountain area used to be ______; people found it hard to travel here.
| A．in poor conditions | B．in good condition |
| C．in poor condition | D．in a poor condition |
On May 30th, 2010, at _____World Table Tennis Championship, Ma Lin and Zhang Joke won the gold medal in men’s with ____score of 3:1.
| A．a; a | B．/; the | C．a; / | D．the; a |