[ 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:
Relative Clause › ViewThis is the writer ____ latest novel has been the best seller over the last few weeks.
A. whom
B. who
C. whose
Degrees of Comparison › View
She is the ___________ student in the whole class.
A. More intelligent
B. Most intelligent
The 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
