You needn’t take your shoes off when you enter someone’s house in Australia , __
题型：不详难度：来源：
You needn’t take your shoes off when you enter someone’s house in Australia , _____ , of course , they’re very dirty .| A．before | B．since | C．when | D．unless |
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答案
| D |
解析
| 考查连词。before 在什么之前，since 自从，when 当什么时候，unless 除非，句意：当你在澳大利亚进入某人家里的时候你没有必要把鞋脱掉，当然，除非你的鞋非常脏。所以选D。 |
举一反三
_________ an ad does not lie, it does not mean it tells you the complete truth.| A．Even if | B．As though | C．Only if | D．as if |
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______ is even more important is that water began to appear on the earth’s surface.| A．Whether | B．That | C．What | D．Which |
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I haven’t decided _____ hotel to stay at.| A．which | B．what | C．at which | D．where |
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You said boys were cleverer than girls. That is _______ I disagree.| A．what | B．where | C．which | D．why |
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I wonder we haven’t received her invitations yet. Her wedding is only two days away. |
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