[ Modals ]
You ……. wear a uniform when you’re in the army
A. must
B. should
C. can

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Narrative TensesDescriptionsAdverbial ClauseTenses and PronounsDEGREE COMPARISONVerb + Infinitive or GerundPrepositions and AdverbsPhrasal Verb & Prepositional PhraseGrammar AssessmentGrammar - too & enoughOther quiz:
Precede vs. Proceed › View… the letter with a cover sheet.
(a) Precede
(b) Proceed
When vs. While › View
… I asked his name, he hung up.
a. when
b. while