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Mark needs to learn Chinese _______his company is opening a branch in Beijing.

A. unless B. until C. although D. since

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There is an old story about a king and his daughter. The king asked his daughter how much she loved him. She said that she loved him as much as she loved salt. Her answer made the king sad. Salt is a simple thing, and it is very common. So the king thought his daughter didn't care about him. But the king was wrong. Salt might be common, but it is very important. Throughout history, salt has caused wars. So why do people care so much about salt?

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For centuries, salt was also hard to get. The combination(組合)of usefulness and rarity made it extremely expensive. Since almost everyone needed salt, the salt trade was an important business. Salt could even be used like money. In fact, the word salary(工資)comes from the word salt. And valuable people are still described as being "worth their salt." Today, salt is easy to get. It is no longer expensive, but it is still both important and useful.

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A. Salt is very common, but it has many uses.

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Gareth Ellis, 13, is the youngest son of Alan, an engineer, and Kath, a teacher. His older brothers work in banking and computers, but Gareth's dream was always to become a clown(小丑).Three years ago, Alan, Kath and Gareth joined the circus(馬戲團). People laugh when we tell them,' saysKath. 'But it's true. Gareth has wanted to be a clown since we took him to the circus when he was three.'

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