4. He tried to do homework every day in order ___________the final exam. A. to fail B. not fail C. didn't fail D. not to fail 5. Farmers use vegetable matter and animal dung to make__________ . A. waste B. paper C. garbage D. compost 6. The Christmas cards__________ by the students are cheap and beautiful. A. designed B. designing C. are designed D. are designing

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