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

Random Topics:
Grammar and SyntaxModals Of SpeculationThe Present Progressive TenseCOUNT - NONCOUNT NOUNSThings in EnglishClauses and ConjunctionPhrasal VerbConjunctions & InterjectionsNoun, Pronoun, Adjective, VerbPast Simple VerbsOther quiz:
TOEFL Grammar › ViewMost people at some stage have a feeling _____.
A. responsible
B. responsibility
C. of responsibility
D. to be responsible
Adverbs, Prefixes, and Suffixes › View
Identify the adverb in the following sentence: He carefully opened the door.
A. carefully
B. quickly
C. happily
D. door
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
