2009年新人教版高二英语Unit17_18基础练习
Unit17_18基础练习一.选出最佳答案
1. In washing this cloth, be sure to _______ the temperature of water.
A. allow forB. pay for C. account forD. answer for
2. One of the provinces _______ the union and formed a new country.
A. broke away from B. kept away from
C. did away with D. cut off
3. It is well known that Thomas Edison _______ the electric lamp.
A. invented B. discovered
C. found D. developed
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