[ Grammar ]
Mark _____________ (study) biology since high school. (PRESENT PERFECT TENSE)
A. has studied
B. had studied
C. will have studied

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Prepositions of Place & TimeAdjectives and AdverbsGerund - to Infinitive Verb & GrammarSubordinating ConjunctionGrammar : Structural Common Errorsanother/the others/each other/one anotherVerb FormsIN, ON & ATFuture Tense and ConditionalsOther quiz:
Adverbs › ViewWhat is the adverb in the sentence?
The soldiers bravely fought.
A. soldiers
B. fought
C. bravely
D. the
Places in Town › View
Is there a post office next to the park? No,
A. it isn’t
B. there isn’t
C. there aren’t