____ is clear to us all, students should obey the school’s rules.A．AsB．WhatC．Wh
题型：不详难度：来源：
| ____ is clear to us all, students should obey the school’s rules. |
答案
| A |
解析
| 在非限制性定语从句中，As代替后面出现的整个概念。 |
举一反三
| Students shouldn’t be given so difficult a problem ______they can not work out. |
______was known to all,William had broken his promise ______ he would give us a rise.| A．As;which | B．As;that | C．It;that | D．It;which |
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John couldn’t finish his words ______ something had struck his throat.| A．though | B．as though | C．when | D．since |
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There was an old man wandering about the corner _____ waiting for someone.| A．even though | B．even if | C．as if | D．in case |
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_________ is known to all，good friends _________ happiness and value to life.| A．It； add | B．As； add | C．It； add up | D．As； add to |
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