[ Grammar ]
How long have they ________ there?
A. waited
B. been waited
C. been waiting

Random Topics:
Grammar and PrepositionsPresent & Past TensesModals VerbsPast Simple (Questions)Modals of Speculation and DeductionModals and AdviceWord Form & Verb TenseGrammar - ConnectorsGrammar : can, could and be able toArticles - rulesOther quiz:
Grammar › View_____ she have a brother?
A. Are
B. Is
C. Do
D. Does
Grammar › View
It’s got two wheels. It can go very fast.
A. skateboard
B. motorcycle
C. rollerblades
D. car
Vocabulary › ViewWho is the _________ of your group ?
A. head
B. responsible
C. beside
D. despite
Passive Voice - Present Continuous › View
Someone is cleaning the room.
What is the passive?
A. The room is cleaned.
B. The room is being cleaned.
C. Someone is cleaned.
