【題目】—I’m worried about my English.

—_____ harder, _____you will catch up with your classmates.

A. Working, and B. To work, or

C. Work, and D. Worked, or

【答案】C

【解析】

試題分析：句意：—我擔心我的英語。—努力學習，你會趕上你的同學的。在“祈使句，and(or)+句子”中：祈使句表示條件，and、or后面的句子表示結(jié)果；若條件與結(jié)果是順承發(fā)展的，用連詞and；若是條件與結(jié)果之間的關(guān)系是轉(zhuǎn)擇的，用連詞or。所以選C。

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