When writing an academic paper, always quote your _________, i.e., give the names of books, people, etc. used as sources for facts
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One bad harvest could ______ all of a grower’s profits for the previous several years.
I prefer drinking________ coke, because I want to lose some weight.
Qualifications are not absolutely ___________, but some previous experience is useful.
If students want to enlarge their vocabulary, it is advisable to make a careful study of the _________ words when they come across a new word.