Your friend looks exhausted. You ask, ‘What have you been doing?’ Why is the present perfect continuous the best tense here?
A. To ask about a single completed action in the past.
B. To ask about a future plan.
C. To ask about a habit or routine.
D. To ask about a recent, continuous activity that has a result in the present (being tired).

Random Topics:
Grammar and Passive VoiceArticles with SubstancesMixed ConditionalAdverb of MannersModal Auxiliary VerbsOffering HelpQuantifiers & Modals of ObligationPresent Simple ProgressiveVerb 3 formsAdjectivesOther quiz:
Coordinate Conjunction › ViewConstance might go to the library, ________ she might stay home.
A. But
B. So
C. Nor
Grammar › View
Mr. Brown is a doctor _______ he knows how to care for his patients.
A. nor
B. yet
C. so
D. and
Grammar › ViewWhat is the missing word? Fourteen, _____, twelve, eleven.
A. Ten
B. Thirteen
C. Fifteen
D. Sixteen
E. Nine
Grammar › View
Which sentence uses “your” correctly?
A. You’re going to love this movie.
B. Your book is on the table.
C. Your the best friend ever.
D. You’re car is parked outside.
