自考《英语（二）》试题练习：非限制性定语从句（3.1）

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2014-03-01 09:55 自考365

　　单选题

　　[2009.10]The traffic was held up for more than thirty minutes，______ caused me to arrive late.

　　A.it

　　B.that

　　C.what

　　D.which