A. turn B. return C. back D. take
A. Insect sprays turn birds purple B. Insect sprays can be harmful to birds. C. Insect sprays help butterflies. D. Insect sprays help birds have baby birds.
A. needs B. continues C. likes D. thinks
A. 正确 B. 错误
A. turned B. got C. sent D. became
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