[ Grammar ]
Teachers _______ allow students to use their phones in class unless it’s an emergency.
A. must
B. should
C. ought not
D. ought to

Random Topics:
Prepositional PhrasesVocabulary and PhrasesConditionals and Modals of ProbabilitySpeculation with Modal VerbsGerunds and InfinitivesPreposition of DirectionFigurative Language VocabularyPast Simple & Past PerfectReporting VerbsVerbsOther quiz:
Grammar › ViewHow ___ pieces of cake ___ there in box?
A. many; are
B. many; is
C. much; is
Be Going To vs. Will › View
“Will” is used for …
A. Past
B. Present
C. Future
Grammar › ViewMy grandparents love ____ very much. There are a lot of beautiful flowers
A. doing garden
B. doing gardening
C. do gardening
D. to do garden
Adjective Clause and Adverb Clause › View
As I cross the bridge over the Bosphorus, I can see the school _______ my friend studied.
A. where
B. that
C. which
D. who
E. when
