[ Modals and Responsibilities ]
They are ___ cleaning the classroom.
A. must
B. need to
C. have to
D. responsible for

Random Topics:
Conditionals and Modal VerbsComparison DegreePresent Perfect SimplePassive Voice of TensesPassive ModalsPrepositions of MovementUsed to & would & Past SimpleNoun PhraseBare Infinitive and To InfinitivePast Perfect Simple TenseOther quiz:
Grammar › ViewWhich sentence is correct?
A. When she moved to France she had to get used to drive on the right.
B. When she moved to France she had to get used to drive on the right.
Verb + Preposition › View
I’m sorry, but I really don’t agree _____ you.
A. with
B. on
C. about
Past Simple & Past Continuous › ViewWhen the big car company in town went out of business, many people ______ for new jobs because they were expecting the company to close.
A. looked
B. looking
C. were already looking
D. look
Grammar › View
After _________ long day, ______ cup of tea was great!!
A. the / the
B. a / a
C. the / a
