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7 All of the flowers now raised here have developed from those _______ in the forest. A. once they grew B. they grew once C. they once grew D. once grew 解析 选 C。先行词是 those，可视为 those flowers 之省略。they once grew 前省略了关系代词 which。全句意为：这儿所养的花是由他们曾在森林里种植的花培养出来的。 8 ---Never give up and you'll succeed. ---Thank you. i won't ______ you. A. hurt B. fail C. depend D. harm 解析：选择B。fail 在这里相当于disappoint。根据句意，说话人是在对对方的鼓励感谢，不会让对方失望! 9 ----May you _______ the experiment! ----Thank you very much. A. success in B. succeed to do C. succeed in doing D. succeed doing 解析：选择C。may sb do sth表示祝愿，后面用动词原形，succeed in doing是固定搭配。 10 It is well known that biology is ______ science about living things. A. a B. the C. / D. an 解析：选择A。science泛指时一般是不可数名词，当说具体某一门学科市场在前面加不定冠词。 (责任编辑：admin) |