[ Present Perfect Continuous ]
The dog ___________ (to bark) at me ____ 5 minutes.
A. has been barking / for
B. have been barking / for
C. has been barking / since
D. have been barking / since

Random Topics:
Have vs. HasClauses of ReasonWord FormationLinking Words and PhrasesFuture Tense VerbPhrasal Verb & Prepositional PhraseGerundFrequency AdverbsIf/Unless - Conditional type 1Conditional and SubjunctiveOther quiz:
Modal Verbs › ViewI’ve called the ambulance. The paramedics _____ be here any moment now.
A. must
B. should
C. will
Grammar › View
Which sentence has a preposition?
A. The cat is on the table.
B. She is reading a book.
C. The dog is barking loudly.
D. I will go to the store.
Grammar › ViewWhich word is the verb in this sentence? “The students study every night before exams.”
A. Students
B. Study
C. Every
D. Night
Grammar › View
He is going to _______ (play) basketball with his friends.
A. playing
B. played
C. play
