[ 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:
First and Second Conditional › Viewif the weather ____ tomorrow, we ____ to the zoo.
A. is, will go
B. are, will go
C. will be, will go
D. is, will went
Sentence Structure › View
The teacher explained the lesson, and the students took notes.
A. Simple
B. Compound
C. Complex
D. Compound-complex
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