They __________ ask for help if they don't understand the ...

[ Modal Verbs ]

They __________ ask for help if they don’t understand the assignment.

A. won’t

B. mustn’t

C. ought

D. ought to

Select your answer:

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Simple Present and Past Tense will, be going to, would like to Phrase or Clause Connectives Grammar - Future Dependent Prepositions Relative & Interrogative Pronouns Asking & Giving Attention Subject, Object, Possessive Pronoun and Possessive Adjectives

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The new mechanic checked the car ___________________ than the old mechanic. (thoroughly)

A. more thoroughly

B. thoroughlier

C. the most thoroughly

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