[ Must / must not ]
You … be rude to your parents
A. must
B. mustn’t

Random Topics:
Definite ArticlesNoun, Verb, AdjectiveModals for RecommendationsGerund, Infinitive & ModalsPresent Simple & Present ContinuousStative Verbs and TensesCommon ErrorAdjectives and comparisonsAdjective ClauseAuxiliary WordsOther quiz:
Subject-Verb Agreement › ViewPhysical therapy, as well as acupuncture, ___ recommended on evaluation with the orthopedist last week.
A. Is
B. Were
C. Are
D. Was
Grammar › View
His parents can’t stand him ____ to rock music at night
A. listening
B. listen
C. to listen
D. to listening
Vocabulary › Viewa device that has electrical resistance and that is used in an electric circuit for protection, operation, or current control
A. resistor
B. utilities
C. appall
D. assessment
Prepositions of Time, Place, and Movement › View
The bus is coming… the street.
A. towards
B. over
C. down
