Columbus(哥伦布)________America and Edison(爱迪生) ________ the light bulb.

题型：单选题题类：常考题难易度：普通

初中英语冀教版七年级下册Unit 2 Lesson 8 Marco Polo and the Silk Road 同步练习B卷

A、discovered; discovered B、invented; invented C、discovered; invented D、invented; discovered

举一反三

—I'd like books about animals. Can I ______ some, Mrs. Yang?

—Sorry, I __________. My fridge doesn't work and the worker is coming to repair it.

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