Mr.Hall understands that__________maths has always been easy for him，it is not easy for the students.
| A．unless | B．since | C．although | D．when |
For sustainable development, the government has decided to giveto those energy conserving and environment-friendly business in many aspects.
| A．profit | B．interest | C．advantage | D．preference |
People like taking photos because photos are the _______ of youth and history and can remind us of many happy scenes.
| A．witness | B．guidance | C．evidence | D．approval |
Shoppers are also less likely to queue for long if the item they are buying is of low value, and ____ food and drink shopkeepers are having to find new ways to deliver good customer service.
| A．in the end | B．after all | C．as a result | D．on the contrary |
The accident produced a very bad impact on the society, so those who _________ the project were severely punished.
| A．come up with | B．look out for | C．took charge of | D．took the place of |
Their efforts finally when the New York Time picked the group as one of the top 10 bands of the year.
| A．sent off | B．paid off | C．set off | D．took off |