Question

【题目】Light bulb which was invented by Edison _________now.

A. was widely used B. is widely used

C. will be widely used D. used widely

Answer 1

【答案】B

【解析】句意：爱迪生发明的灯泡现在被广泛使用。考查被动语态。主语Light bulb是动词use的受动者，需用被动语态，可排除D选项。now现在，用于现在时，可排除AC选项。根据句意结构，可知选B。