[ Modal Verbs ]
People living in high-rise buildings _____ obey the safety rules and regulations strictly.
A. shouldn’t
B. mustn’t
C. may
D. have to

Random Topics:
Grammar TOEFLDemonstrative Pronouns and Verb TensesAdverb or AdjectiveGrammar - Wh QuestionsGrammar and Sentence CorrectionComparative and Superlative AdjectivePresent Perfect Simple & ContinuousPresent PerfectPresent Perfect Simple & Present Perfect ContinuousPronouns/ Present TenseOther quiz:
Vocabulary › Viewa town or city that is the seat of a government; wealth or form of money or property.
A. capital
B. Capitol
C. capitol
Past Simple - Present Perfect › View
___ you ______(finish) your homework yet?
A. Did / finished
B. Have / finished
C. Did / finish
D. Have finish
Coordinate Conjunction › ViewThe candidate didn’t show up for the interview, … the HR manager crossed her off the list.
- and
- but
- so
- yet
Comparatives ( adj/ adv) › View
The air in the mountainous zones is ______ than that in the cities.
A. more fresh
B. fresher
C. more fresher
D. freshly
