[ Grammar ]
They …. (study) in the library Right now.
A. have studied
B. study
C. studies
D. are studying
Select your answer:

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Present tense AffirmativeFOR & SINCEPassive Voice - Present ContinuousModal Verbs & Perfect InfinitiveSimple Tenses in EnglishSimple TenseCommon Grammar Mistakes and Spelling TipsInfinitive and GerundQuestion TagComparative AdjectivesOther quiz:
Tenses › ViewWater ___ about 50 to 55 percent of total body weight
A. make up
B. makes up
C. making up
D. made up
Modal Verbs › View
Identify the modal verb in the following sentence:
He _ have helped us if he had known about the situation earlier.
A. can
B. must
C. could
