[ 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:
Noun Clauses › ViewDonating some of your wages to a charity will not only help unfortunate people, but it will also give you a sense of pleasure, ……… charity you support.
A. whoever
B. whenever
C. whichever
D. however
IF CLAUSE › View
If she had studied, she ………………the exam.
A. would have passed
B. will pass
C. would pass
D. would passed
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
