When you’re learning English, just use it, ______ you’ll lose it.
A．soB．butC．a(chǎn)ndD．or
D解析:
根據(jù)句意要用連詞，表示對(duì)前文的補(bǔ)充或說明。
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Do you want to be the best student in your class? Be the envy of all of your friends in school and be the p  1.  of your teachers and parents !

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