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[ Modal Verbs ]

This is an opportunity that comes once in a lifetime. We ____ let it pass.

A. don’t have to

B. shouldn’t have

C. needn’t have

D. mustn’t

Select your answer:
         


Topics :

Passive Sentence Phrasal Verb & Prepositional Phrase Infinitives Comparisions Modal Verbs in First Conditional Wish Sentences Modal Verbs in Emergency Situations Preposition and Word Form Grammar (Possessive Pronouns) Verbal and Appositive Phrases English Morphosyntax Synonyms and Vocabulary Grammar Pronoun and Singular Plural Noun Adverbs by Type Countable & Uncountable Nouns Adjectives and Pronouns Irregular verbs Modals of Speculation and Deduction used to vs be used to vs get used to Modal Verb Passive to Active Modals Auxiliary Conditional Types Comparative - Superlative First vs Second Conditional Sentences Grammar Double Object Verbs Adjective Clause Relative Pronoun/Adverbs Modals: Possibility, Necessity, Expectation Time Clauses of Future Conjunctions, Interjections and Determiners Adjectives and comparisons Punctuating Clauses Time and Calendar Zero and First Conditionals Simple Tenses Conjunctions - Conjunctive Adverbs Jobs Will, Be going to, Present Continuous Present Continuous, Present Perfect and Used to Relative Pronoun Let & Be allowed to The Simple Present Tense Possessive Adjectives Past Perfect Tense and Past Tense Connectives (because, due to, owing to, because of) Relative Clauses and etc Grammar and Idioms Present Perfect Modals Verb Present Perfect and Past Simple Homophone & Homonym Miscellaneous Grammar Usages Adverbs of Frequency & Simple Present Tense Verb & Grammar Gerund or to Infinitive Prepositions of Time and Place Future Tense Vocabulary Past Perfect or Past Perfect Continuous Past Perfect Tense Noun, Quantifiers and Suffixes Subject Verb Agreement and Tenses Grammar Like & Linking Verb Verbs and Subject Verb Agreement Action vs Linking Verbs/ Verb Phrases Simple Past - Irregular Verbs Comparison of Adjective and Adverb Coordinating Conjunctions Few, a few, little, a little Grammar - could / could not Grammar-Present Continuous-Sentence Making Vocabulary and Idioms Pronouns and Subject Verb Agreement Grammar and Adverbs Writing and Modal Auxiliary Verbs & Adverbs Relative Clauses and Usage Verbs and Tenses Vocabulary and Definitions Similes and Body Idioms Adjectives Ed and Ing Grammar & Reading Be used to vs used to Mixed Conditional For vs Since going to Personal pronouns + possessive adjectives + Introgative pronouns Grammar-Translation Method Future - will / going to / present continuous Moods of Grammar Conditionals Suffixes (ing-ed) Sentences Passivisation Has Got & Have Got Modals with Perfect Infinitive Conditional Sentences Type 0, 1 and 2 Gerund & Infinitive Inversion + Passive Voice Adverbs of frequency Present Perfect Continuous Tense