[ Grammar ]
Seven levels are rising, and … major cities are in danger.
A. some
B. any

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Subject-Verb AgreementPrepositions & Modal VerbsPast Simple, Past Continuous, Past Perfect, Past Perfect ContinuousParts of Speech and GrammarPresent Simple Tense PassiveRun-On SentencesComplex Sentences with Adverb ClausesModals - Reported Speech - ConditionalsCompound Nouns and Compound Adjectives QuestionsDemonstrative PronounsOther quiz:
Vocabulary › ViewMany libraries are adjusting their operating hours.
Libraries mean:
A. A place where there are a collection of books
B. A place where there are a collection journal articles
C. A place where people can go to study
D. All the above
Prepositions › View
I will go _______ vacation next month.
A. in
B. for
C. on