[ Vocabulary and Grammar ]
When you save energy, you not only save money, you also reduce the demand for ___________ such as coal, oil, and natural gas and that is a great wa to play a part in saving the planet.
A. carbon footprint
B. electricity
C. fossil fuels
D. biogas

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Grammar › ViewA sustainable forest is a forest where trees that are cut are replanted and the wildlife is protected.
A. pre-tested
B. preserved
C. reserved
D. protested
Grammar › View
A. Math
B. Science
C. cheat
D. locker
Do you know the woman ___ red hair?
a. at
b. by
c. with
Grammar › View
The more you practice speaking English speaking in public, ____
A. the more you become confident
B. the more you become confidently
C. the greater confidence you become
D. the more confident you become
