[ Tenses ]
Which sentence is in the past perfect continuous tense?
A. They had been waiting for an hour when the bus arrived.
B. They waited for an hour before the bus arrived.
C. They are waiting for the bus now.
D. They will be waiting for the bus later.

Random Topics:
Grammar - NounsVerb to haveCohesive DevicesConditional Sentence Type 2Grammar - much, many, a lot ofPresent Continuous TensePhrasesTenses - Irregular VerbsModals of AdviceVerb Patterns / IngOther quiz:
Grammar › ViewWhich word below is NOT a common noun?
A. august
B. pencil
C. sadness
D. day
Phrasal Verb › View
The band have just brought _____ their second album.
A. out
B. in
C. about
D. down
Present Continuous Tense › ViewMrs Anita : What is the girl doing right now?
Shofi : The girl is ….
_
A. breaking the dishes
B. washing the clothes
C. washing the dishes
D. cleaning the room
Grammar › View
Adjectives: Identify the adjective in the following options:
A. ancient
B. run
C. happiness
D. elephant
