[ Tenses ]
My parents ___________ (to talk) with my sister for hours.
A. have been talking
B. has been talking

Random Topics:
Adjectives and comparisonsModals with Perfect InfinitivePresent tense AffirmativePassive Voice in Past and Present TenseModal Verbs for PossibilityGrammar - Place and MovementQuantifiers MixHomophone & HomonymAsking and Giving OpinionParallel Structure or Combining SentencesOther quiz:
Modals with Perfect Infinitive › ViewNobody knows exactly why he died. But we think it ___ have been an accident.
A. might
B. should
C. can
D. must
Vocabulary › View
a round open container with a handle, used for carrying liquid and substances such as sand or dirt
A. cage
B. ground
C. bucket
D. scold
Future Perfect Tense › ViewAt this time tomorrow, I … to pay off my debts.
- will have money
- will have had money
Present Tenses › View
I ___ (already, finish) reading that book.
A. already finish
B. am already finishing
C. have already finished
D. have already been finishing