[ Vocabulary and Grammar ]
Choose the correct option: “You ___ sign up for the aerobics class in advance.”
A. has to
B. have to
C. don’t has to
D. doesn’t have to

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Prepositions and ArticlesAdjectives vs AdverbsModals for ObligationAbilityApostrophes and GrammarSentencesAdverbs & to beFormal & Informal WordsPassive Voice - Present ContinuousComperative and SuperlativeOther quiz:
Grammar › View_______ I am free, I will help you with your project.
A. If
B. For
C. In order to
D. However
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Help children in times of trouble, _______ the future of the world depends on them.
A. And
B. But
C. For
D. Yet