3 . After Li Daiyu and her cousin arrived in Toronto, the largest and wealthiest city in Canada, they only had a few hours to kill before they had to proceed to the next leg of their trip to Montreal, so they went on a tour of the city. （英译汉）
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4 . A people without the knowledge of their past history, origin and culture is like a tree without roots. —Marcus Garvey(英译汉)
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5 . 节日是社会的一个重要组成部分。(汉译英)
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6 . The distinguished professor, as well as 5 of his students, ________ invited to attend the opening ceremony of the annual conference about global warming in two weeks to come.

A．is to be

B．are to be

C．was

D．were

7 . You will be surrounded by evidence of four different groups of people who took over at different times throughout history. (英译汉)
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8 . These bad habits, if left unchecked, could lead to more serious ones when they become adults. （英译汉）
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9 . 这些国家不仅找到了一条不以牺牲古迹为代价的未来发展之路，而且明白了多个国家合作创造美好未来的可能性。
_________ the countries found a path to the future that did not _________ the relics of the past, _________ they had _________ learnt that it was possible for countries to work together to build a better tomorrow.

10 . There comes a time ________ we must become lifelong learners. (用适当的词填空)