Nowadays, teenagers ______ stay up chatting with their friends on social media.
A. use to
B. have a tendency to

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Modal VerbGrammar: is/are/was/wereAdverbs and Adverbial PhrasesModals AuxiliaryVerb Tenses and Past ParticiplesTenses of VerbsPassivisationWh QuestionsPassive ModalsModals Deduction: cant /mustOther quiz:
Abstract Nouns › ViewWhich word is the abstract noun in the sentence: His kindness towards animals is well-known.
A. kindness
B. towards
C. animals
D. well-known
Vocabulary › View
A mathematical phrase involving at least one variable, and sometimes number and operation symbols
A. Algebraic Expression
B. Coefficient
C. Constant
D. Distributive Property
E. Equation
Active and Passive Voice › ViewWhat is the structure of a present progressive passive sentence?
A. has/have + been + past participle
B. am/is/are + being + past participle
C. was/were + being + past participle
D. am/is/are + past participle
Grammar › View
After I finished college I __________ in a small business for three years.
A. work
B. have worked
C. worked
D. working