An invention is a new way of solving a problem, so try our best to think of many __________ and unusual ways.
| A．varying |
| B．variety |
| C．varied |
| D．variation |
You________scold such a pupil who always keeps silent so seriously that you________hurt him.
| A．should；can | B．may；will | C．mustn’t；may | D．can’t；must |
The train moved slowly from the station，but________speed as it reached the open country.
| A．picked up | B．looked up | C．put up | D．made up |
A recent survey shows the number of people who shop in stores________，while far more are shopping online.
| A．decrease | B．decreases | C．is decreasing | D．are decreasing |
As________tourist attraction，the Summer Palace does have________strong attraction to visitors from home and abroad.
| A．the；/ | B．the；a | C．a；/ | D．a；the |
From space, the earth looks blue. This is about seventy-one percent of its surface is covered by water.
| A．why | B．how | C．because | D．whether |