A dozen ideas were considered____the chief architect decided on the design of th
题型：不详难度：来源：
A dozen ideas were considered____the chief architect decided on the design of the building． | A．because | B．before | C．whether | D．unless |
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答案
| B |
解析
| before意为“在……之前”，引导时间状语从句，表示在决定这个建筑物的设计之前考虑了十几个意见。because意为“因为”，引导原因状语从句。whether意为“是否”，常用于引导名词性从句或让步状语从句。unless意为“如果不，除非”，引导条件状语从句。 |
举一反三
My parents were quarrelling about me ____ I could not quite tell why．| A．since | B．though | C．if | D．until |
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| I haven’t seen Ann for ____ long that I’ve forgotten what she looks like. |
For many cities in the world, there is no room to spread out further, _______ New York is an example.| A．for which | B．in which | C．of which | D．from which |
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We’ll have a picnic in the park this Sunday _________ it rains or it’s very cold.| A．since | B．if | C．unless | D．until |
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I won’t call you, ________ something unexpected happens. | A．unless | B．whether | C．because | D．while |
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