Topics: Modal Verbs
They ____________ stay up late on school nights.
A. aren’t able to
B. mustn’t
C. should
Select your answer:

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Grammar CorrectionPast simple - Irregular VerbsGerund after Prepositions and Certain VerbsModal Auxiliary VerbsIndependent and Dependent ClausesSubjunctivesPresent Simple ProgressiveGerunds + To InfinitiveTenses and ArticleModal "Have to"Other quiz:
Tenses › ViewBen__ the competition yesterday.
A. Wins
B. Won
C. Is winning
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Vocabulary › View
One way that you can make a(n) ____ on the planet is to consume less, meaning don’t buy things that you don’t need.
A. impact
B. economy
C. resource
D. service
