[ Passive Voice ]
Why are the students staying outside?
Their classroom …
A. is being cleaned
B. being cleaned
C. was cleaned
D. is cleaning

Random Topics:
Gerunds as Objects of PrepositionsIELTS GrammarObject PronounReported - GerundModals and ResponsibilitiesSubject Verb Agreement Irregular VerbWishesConditional Sentences and AdverbsFuture Continuous TenseModal AuxiliaryOther quiz:
Past Tenses › ViewAt last he got the opportunity he _______ for so long.
A. waited
B. was waiting
C. had waited
D. had been waiting
Grammar › View
A _____ subject has two subjects that share the same predicate.
A. Complete
B. Complex
C. Simple
D. Compound
Phrasal Verb › Viewbegin working hard
A. Set on
B. Set to
C. set off/out
D. set up
Grammar › View
If she _____ in the Olympics, we’ll be very proud of her.
A. will compete
B. competes
