[ Modal Verbs ]
You _______________conduct any chemistry experiments unless you are wearing safety glasses.
A. mustn’t
B. don’t have to
Random Topics:
Linkers and ConjunctionsPreposition of DirectionGerunds, Infinitives and Modals of PossibilityPresent/Past/Past ParticpleGrammar AssessmentVerbal PhrasesTOEFL Adjective and AdverbPresent SimpleRequest with Modal VerbsNouns & PronounsOther quiz:
Gerunds and Infinitives › ViewMy father usually helps me_______ English.
A. to learn
B. learning
C. both A and B
Modal Verbs › View
Look at Sally’s suntan. She must … somewhere hot on her vacation.
A. be
B. have been
C. have went
D. gone
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