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Questões por página:
Choose the sentence in which the modal verb expresses obligation.
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Which word has a different pronunciation of the ending "-ed"?
Complete the sentence with the appropriate phrasal verb.

After several months of investigation, the scientists finally the cause of the problem.
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The sentence "Global carmakers are facing reckoning" contains a verb phrase in the:
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In the sentence “system reliability and data integrity are considered essential requirements”, the plural verb form agrees with the subject.