[ 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

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Grammar - Present Perfect with already, just, yetVocab and GrammarUnderstanding Product Packaging and TensesA/AnDescriptionsLinkers and ConjunctionsPossessive AdjectivesConditionalTenses and ArticlesGerund, Infinitive & ModalsOther quiz:
Prepositions › ViewA galaxy is a system ___ stars.
a. of
b. off
c. with
Adjectives and Adverbs › View
In the sentence “He spoke too quickly for me to understand,” what part of speech is “quickly”?
A. A verb
B. An adverb
C. An adjective
D. A noun
Grammar › ViewI’d like to buy ____ book for my aunt because she likes _____ reading.
A. a, —
B. a, an
C. a, the
D. —, the
Phrasal Verbs › View
Come up with
A. Think of an idea or plan
B. Find an answer to something
C. Think about something in the past
