[ Modal Verbs ]
You _______________conduct any chemistry experiments unless you are wearing safety glasses.
A. mustn’t
B. don’t have to

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Linkers and ConjunctionsPreposition of DirectionGerunds, Infinitives and Modals of PossibilityPresent/Past/Past ParticpleGrammar AssessmentVerbal PhrasesTOEFL Adjective and AdverbPresent SimpleRequest with Modal VerbsNouns & PronounsOther quiz:
Grammar › ViewI don’t type very well, but my boyfriend ___.
a. do
b. does
c. did
Gerund › View
Ardi is going to ________ football this morning
A. playing
B. plays
C. played
D. play