Paper       first invented in China .

A．is B．a(chǎn)re C．was D．were

B

解析試題分析：句意：紙是首先在中國發(fā)明的。結(jié)合常識，紙的發(fā)明是過去的事，故用一般過去時，故排除AB兩項(xiàng)。因?yàn)橹髡Z是paper不可數(shù)名詞，故謂語用單數(shù)形式，故選B。
考點(diǎn)：考查時態(tài)和主謂一致的用法。

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