100 years ago, people _____ have cell phones.
A. 100 years ago, people don´t used to have cell phones.
B. 100 years ago, people didn´t used to have cell phones.
C. 100 years ago, people didn´t use to have cell phones.

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Unless If First ConditionalModals of AdvicePresent Perfect & Past Simple TenseComparative and Superlative AdjectivePresent Simple QuestionsOffering HelpGrammar, Literature, and VocabularyAdjective and AdverbAdverb Clauses of TimeModals and TensesOther quiz:
Vocabulary › ViewSometimes it is better to remain mysterious.
Mysterious means:
A. Quiet
B. Outgoing
C. Remain unknown
D. None of the above
Adjective Clause and Adverb Clause › View
He bought a novel. It tells about a detective story. The sentences can be combined as follows:
A. He bought a novel which tells about a detective story.
B. He bought a novel who tells about a detective story
C. He bought a novel a detective story.
D. He bought a novel which telling about a detective story.
E. He bought a novel which is telling about a detective story.
Grammar › ViewNeither books nor a briefcase —- needed
A. are
B. is
C. am
D. have
Vocabulary › View
My house is …………… the left of hers.
A. into
B. to
C. in