3. The old lady was the only w　　　　　 　to this car accident, which caused five cars damaged.

2. This maths problem p　　　　　 　me a lot. I really don’t know how to solve it.

1. The experience about the earthquake was f　　　　　 , just like a nightmare.

6. 她的病已发展到无人能治疗的地步了。(where引导定语从句)

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5. 没有人注意到她的缺席。(go unnoticed)

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4. 我们还以为你在北京出差呢。(thought)

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3. 直到你许诺再也不对着我的猫踢球，你才能取回这个足球。(not….until)

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2. 我们未能就所讨论的任何问题达成协议。(过去分词作定语)

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1. 他张了张嘴，好像要说什么。(as if / though)

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15. Those successful deaf dancers think that dancing is an activity ______sight matters more than hearing. 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　(’07 天津)

A. when　　　 B. whose　　　 C. which　　 D. where