[ Modal Verbs ]
Which modal verb is used to express necessity or obligation?
A. must
B. can
C. should
D. might
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Present Tense vs Past TenseCoherent Sentence with Correct Grammar StructureUsed toGrammar of Future PlansPhrase or ClauseConditionals and Modals of ProbabilityVerb AgreementHow many / How much - Is there / Are therePersonal PronounsInfinitives for reasonsOther quiz:
Grammar › ViewBy end of this year, Staff Sergeant Liu ____________ in the K9 training unit for thirty years.
A. serves
B. is serving
C. has served
D. will have served
Present Perfect vs Past Simple › View
Uzupełnij zdanie:
“My sister _______ me since last September.”
A. didn’t visit
B. hasn’t visit
C. hasn’t visited
D. didn’t visited