[ TOEFL Grammar ]
The quality of the essays _____ significantly among applicants.
A. vary
B. varying
C. varies
D. is varying

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Past Tense, Recount Text, and Future TenseSuffixes and TensesModal Auxiliary VerbsBe going to / WillTenses and Sentence CompletionPresent Simple: affirmative, negative, interrogativeHave GotConjunctions, Interjections and DeterminersModals in the PastPersonal PronounOther quiz:
Grammar › ViewThey….a cup of coffee, but chocolate.
A. is not collecting
B. are not drinking
C. are not collecting
D. is not drinking
Vocabulary › View
let someone use something you have.
A. share
B. hoard
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Grammar › ViewThose ___ look ripe for eating.
A. mangoes
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It’s raining. …………….., Mr. Nam has to go to work.
A. Although
B. So
C. Therefore
D. However
