[ Grammar ]
The flight attendants made all the passengers —— their seat belts during the turbulence.
A. to buckle
B. to have buckled
C. buckling
D. buckle

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Modals and ResponsibilitiesAlthough / DespitePhrasal Verb and ModalModals of ObligationTenses of VerbsWill, Be going to, Present ContinuousPast Continuous Tense & Past ModalsAdjectives, Adverbs, and PrepositionsGrammar - Compound SentencesParticiple - ing/ edOther quiz:
Past Tense › ViewI could not hear him because he ________________ very softly.
A. spoke
B. speaks
C. speak
D. speaking
Grammar › View
What ______ very well?
A. you can do
B. do you can
C. can you do