[ Interjections, Tag Questions and Nouns of Direct Address ]
What is a typical noun of direct address in a scientific email?
A. Professor
B. Experiment
C. Data
D. Conclusion
Select your answer:

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Prepositions and Prepositional Phrases › ViewWhat is the preposition? Angela fell asleep during class.
A. during
B. fell
C. asleep
D. class
Noun and Modal Verbs › View
During the exam, students _____ use calculators but _____ bring their phones.
A. don’t have to, mustn’t
B. must, needn’t
C. have to, must
D. needn’t, have to
