[ Tenses ]
What is the structure of the present perfect tense?
A. Subject + has/have + verb-ing
B. Subject + have/has + past participle
C. Subject + was/were + past participle
D. Subject + will have + verb-ing
Select your answer:

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Verbs of movementAdverbial Clauses of Manner and ResultVerbs & Phrasal VerbsGrammar - to beParticipal PhrasesComparative and Superlative AdverbsModal ProbabilityEd and Ing EndingsSimple Past Tense and Past Perfect TensePast Continuous TenseOther quiz:
Tenses › ViewThe children______________ their parents for a long time.
A. didn’t see
B. haven’t seen
C. haven’t see
Phrasal Verbs › View
Which of the options best represents the meaning “arrive and register at a hotel or airport”?
A. Check out
B. Check into
C. Check in
D. Check off
