Research suggests that fast food and soft drink directly _________ to childhood obesity.
| A．appear | B．contribute | C．adjust | D．respond |
Mr. Smith will pay a visit to Beijing this autumn, ________ we will enjoy the Olympic Games in 2008.
| A．where | B．when | C．which | D．how |
This is the case ________ he’s had all his money stolen.
| A．when | B．where | C．that | D．on which |
Nearly all the streets are in straight lines, ________ from east to west. Those ________ run from north to south are called avenues.
| A．running; that | B．run; who | C．running; who | D．run; that |
In warm weather fruit and meat ________ long.
| A．don’t keep | B．can’t be kept |
| C．are not kept | D．aren’t keeping |
―Was the doctor there when you arrived?
―Yes, but he ______ out a moment later.
| A．had gone | B．has gone | C．went | D．is going |