[ Modal Auxiliaries and Similar Expressions ]
He ___ work with old programming languages before switching to Python.
A. used to
B. be used to
C. must
D. should

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ConjunctionCoordinating Conjunctions and Comparative AdjectivesSimple Past Tense (was/were)Verbs, Tenses, and VocabularySimple and Progressive Verb TensesDefinite and Indefinite ArticleQuantifiers, Countable and Uncountable NounsConditional Sentences Type 1Vocabulary & Phrasal VerbLinking WordsOther quiz:
Verbal Communication › Viewthe body of words used in a particular language: is symbolic, has standards of appropriateness and adds interest to communication
A. grammar
B. vocabulary
C. etymology
Similes and Body Idioms › View
The night was as black as ________.
A. DIRT
B. COAL
C. LEAD