[ Must or Mus not ]
We ______ use phones or tablets at school.
A. mustn’t
B. must

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Grammar and SyntaxModals Of SpeculationThe Present Progressive TenseCOUNT - NONCOUNT NOUNSThings in EnglishClauses and ConjunctionPhrasal VerbConjunctions & InterjectionsNoun, Pronoun, Adjective, VerbPast Simple VerbsOther quiz:
Grammar › ViewCanada’s Pan Rail Corporation will no longer …… freight into the United States.
A. transport
B. transported
C. transporting
D. transports
Conjunction › View
She is too young, __________ she can not smoke.
A. also
B. so
C. like
D. but