• 2022-05-29
    Past tense is used more often in writing the abstract of a research paper.
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      ‍While writing suggestions for future studies, you are advised to use _________.‍ A: the future tense B: the past tense C: the present tense D: the progressive tense

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      We need to cite sources properly in writing a research paper.

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      中国大学MOOC: The imperative mood is often used in writing instructions, because it is more direct and economical.

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      Sources used in a research paper should be ______.

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      When you point out the purpose / problem of research again, the is mainly used. A: present tense B: present perfect tense C: past tense D: future tense