You ________listen to the teacher if you want to understand the work.
A. ought to
B. ought not
C. must not
D. should not
Many vs. MuchIrregular VerbIdioms Possessive NounsSynonym and AntonymQuestion TagAdjectives Ed and IngIN, ON & ATComparative Adjectives
Other quiz: Grammar
The restaurant has always ________ its employees on Fridays.
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