[ Passive Voice with Modals ]
Safety instructions ___ at the start of every flight.
A. should be explained
B. should explain
C. should be explaining

Random Topics:
Conjunctions, Interjections and DeterminersQuestion WordsVocabularymust/shouldSimple Past/Past ProgressiveComparative AdverbsPassive Voice - Present Simple and Past SimpleVocab CheckingContrastive ConjunctionModals for ObligationOther quiz:
Grammar › ViewEverybody…….. work hard everyday.
A. doesn’t
B. isn’t
C. don’t
D. aren’t
Grammar › View
Both John and Jim said (he, they) were not exercising regularly.
A. they
B. he