[ Grammar ]
A group of students _____ for the exam now.
A. studies
B. are studying
C. is studying
D. study

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Grammar TOEFLTenses - Present and PastConditionals III - Mixed 1st, 2nd & 3rd ConditionalsComparatives ( adj/ adv)Verb & GrammarThings in EnglishGerundsPresent Progressive (Future)Countable QuantifiersPast Simple VS Used toOther quiz:
a, an, the, Zero Article › ViewLet’s go for ___ drive in the country.
A. A
B. An
C. The
Demonstrative Pronouns › View
How many of _________ cookies would you like? Two? OK, here you are.
A. this
B. that
C. these
D. those
Grammar › ViewChoose the correct verbs to complete the sentence.
How many English classes ____ before you ____ this one?
_______
A. had you taken / had taken
B. did you take / had taken
C. had you taken / took
Irregular Verb › View
KimKhun has _______ for 12 hours each night since school closed.
A. sleeped
B. slepd
C. slept
D. sleep
