I/ Choose the best answer:
31. At this time tomorrow, I ………….to school.
A. walk B. will walk C. will be walking D. will be walk
32. Biogas……………. in the countryside in the future.
A. will be used B. will use C. will be using D. use
33. Solar energy is an ……………friendly source of energy.
A. environmental B. environment C. environmentalist D. environmentally
34. This is my book, and that book is………………………….
A. her B. our C. yours D. their
35. We should use ………….light bulbs in our homes..
A. low energy B. little energy C. a bit energy D. efficient
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Sinh Học lớp 12
