[ Passive Voice and Modals ]
You _______________ not litter.
A. should to
B. have to
C. must
D. has to

Random Topics:
Common ErrorDefinite pronouns (Subject, Object, Reflexive)Past Narrative TensesArticle the or zero article (-)Grammar (was, were, could, could not)Past Simple (Questions)ClauseVerb AbilityClauses and ConjunctionMust Vs Have toOther quiz:
Modal Auxiliaries › ViewFill in the blank: You ___ not smoke in this area.
A. might
B. must
C. should
D. can
Grammar › View
She _________________ (not / write) to her grandmother.
A. didn’t write
B. no writing
C. didn’t writes
D. weren’t writing
Articles and Demonstratives › ViewLisa saw _____ shooting star yesterday.
A. a
B. an
C. the
D. this
There is or There are › View
There’s a girl ___ the swimming pool.
A. on
B. at
C. in
