问题

He used this discovery to ________ a machine for making electricity. Faraday also showed how electricity affects chemical ubstances.

A:debate
B:reflect
C:match
D:produce

正确答案是：

同类题型

How do you usually go to school, Mary—-I usually go to school _______ a bus.

I’m leaving now.—It’s so late. Better stay with me. Call a taxi if you _______.

116.–I hope that you can remove the difference between you and Susan and become good friends– _________If only Susan had the same idea

读一读，找出每组单词中不同类的一个1.

Why do you look sad?— There are so many problems ________. [ ]