[ Grammar ]
Isn’t she a doctor?
A. No, she is.
B. No, she.
C. No, she isn’t.
D. No, she are not.

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Regular and Irregular AdverbModals: Possibility, Necessity, ExpectationConditionalPast ParticiplesShould and Shouldn'tGrammar - Present Perfect with already, just, yetGrammar TOEFLNounGrammar and EssayNoun QuantifiersOther quiz:
Tenses › ViewI always _____ to school by bus. However, this week _____ by bike.
A. went – went
B. go – am going
C. go – have gone
D. went – will be going
Grammar › View
Identify the part of speech of the underlined word.
Our tires tread on!
___
A. Noun
B. Pronoun
C. Verb
D. Adverb
E. Adjective
Modal Verbs › ViewI’ve already sweep the floor, you … do it again
A. don’t have to
B. must
C. mustn’t
D. have to
Grammar › View
We walked as far as the waterfall, ____ we stopped for a picnic.
A. which
B. that
C. where