[ Modals ]
This is a dangerous tour. Children……………… be accompanied by an adult.
A. shouldn’t
B. should
C. mustn’t
D. must

Random Topics:
GerundPast Perfect & Past SimplePronoun-Verb AgreementVocab CheckingSubjunctivesHomophone & HomonymConditionals and Modal VerbsModal Verbs of ObligationVerbs: Action, Linking, and HelpingBasic TensesOther quiz:
Compound Adjectives › ViewSome computer games improve your ______ skills
A. high-rise
B. decision-making
C. world-changing
D. reading
Vocabulary & Grammar › View
Mrs. Jones parks the car in the ____ next the the garden.
A. wall
B. house
C. garage
D. shed
Grammar › ViewAfter the horrible crash, rescue teams from all over the country are now looking for ______ was on the plane.
A. no matter who
B. whoever
C. whomever
D. those who
Tenses › View
I ______(not/like) fish.
A. not like
B. doesn’t like
C. don’t like