1 . 警方称尚无迹象表明引起爆炸的大火是有人故意为之。（indication）（汉译英）

2 . —Why do you call him Mr. Knowledgeable?
—Because he knows almost everything ________ we want to know.

A．which

B．what

C．who

D．that

3 . 尽管智能手机给人们生活带来了许多便捷，但其负面影响不容忽视。(汉译英)

4 . 他们必须是在他们运动领域中堪称大师的运动员，并且为其他人树立了很好的榜样。（who引导的定语从句）(汉译英)

5 . Many university graduates wish to be offered a job_________ they can find an opportunity to experience the excitement of it.

A．where

B．why

C．which

D．what

6 . 好朋友是在你处于困境时，总会支持和帮助你的那些人。（who引导定语从句）（汉译英）