[ Present Perfect Simple & Continuous ]
How long ______ you ______ your best friend?
A. have / knowing
B. have / known
C. have / been knowing

Random Topics:
Apostrophe GrammarGrammar, Literature, and VocabularyComparative - SuperlativeVerb ConjugationModal Verbs for PossibilityQuantifiers: too many, too much & enoughGrammar : Structural Common ErrorsPast Simple & Past PerfectPronouns, Sentence Structure, and ApostrophesGerunds and TensesOther quiz:
Tenses › ViewMy friend asked me if I (ever/attend) a fashion show.
A. attended ever
B. ever attended
C. had attended ever
D. had ever attended
Tenses › View
I ……..at my report since Monday. Now I ……the conclusion.
A. worked/am writing
B. have worked/was writing
C. had worked/was writing
D. have worked/am writing
Grammar › ViewWhat would your parents do if you ______________ your room?
A. weren’t clean
B. don’t clean
C. didn’t clean
D. not clean
Unreal Conditionals › View
If he had studied for the exam a little more, _________________________________.
A. he would have passed the class.
B. he would pass the class.
C. he has passed the class.
D. he had passed the class.
