[ Grammar ]
They have cleaned the windows…
A. have they?
B. didn’t they?
C. haven’t they?
D. hadn’t they?

Random Topics:
Definite pronouns (Subject, Object, Reflexive)Will or Going toAntonymsFuture Time and TensesIELTS GrammarModals and PhrasesConditional Sentences Type 1Western Europe CountriesInfinitive and GerundsPersonal & Possessive PronounsOther quiz:
Prepositions › ViewDenver is a big city ______ Colorado (State)
A. In
B. at
C. on
Conditional Sentences › View
If my father________bankrupt last year, he could own the luxurious car now.
A. didn’t go
B. hadn’t gone
C. wasn’t going
D. weren’t to go
Functional Sentence Types › ViewWhat type of sentence is ‘Clean your room’?
A. Imperative
B. Exclamatory
C. Interrogative
D. Declarative
Passive Voice & Tenses › View
They (make) _________ five films since they left college.
A. had made
B. have maked
C. have made
D. made
