Unit 6 When was it invented?
一,单项选择
1, ---When was the telephone invented? ---___1876. A. On B. At C. In D. Of
2, ___invented tea? A. Who B. When C. What D. How
3, ---What are the shoes with lights used for? ---___
A. It is used for seeing in the dark. B. They are used for seeing in the dark.
C. It was used for seeing in the dark. D. They were used for seeing in the dark.
4, ---How was tea invented? ---___
A. 5,000 years ago B. By accident C. Shen Nong, a ruler D. Over an open fire