[ Present Perfect Tense ]
You are the most patient one I (know).
A. have known
B. have know
C. know
D. knew

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HomophonesAdverb Of PlaceRelative Clauses with who and whichAdverb PhrasesPronouns and QuantifiersGrammar (Possessive Pronouns)Simple Future - WillSimple, Compound, Complex SentencesClause Markers TOEFL GrammarPresent and Future TensesOther quiz:
Articles and Pronouns › ViewWhich sentence correctly uses the articles ‘a’ and ‘an’?
A. An letter is addressed to a author.
B. A author is writing an book about elephants.
C. We can look for a book about an elephant.
Tenses › View
They _____ (finish) the exercises.
A. Don’t finish
B. Haven’t finished
C. Haven’t finish
D. Hasn’t finished
Verb & Grammar › ViewWhich word is an adjective in this sentence: “The red balloon floated away”?
A. red
B. balloon
Grammar › View
How is the present tense used in this sentence? I like cats.
A. actions that happen repeatedly or regularly
B. information about the present condition that is true
C. information that we believe is a fact
D. actions that take place at the time of speaking
