[ Modals ]
I ‘m tired. – You ……………………… work so many hours .
A. shouldn’t
B. must
C. may
D. should

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Grammar › ViewSome bonsai collectors __________ for bonsai plants in jungles.
A. look
B. looks
C. looked
D. looking
Grammar › View
They _____ at this conference for the last two days.
A. have been
B. were
C. are
D. be
Grammar › View Which word is an adjective? Chris really wanted to go to the movies with his best friend.
A. Really
B. Best
C. Friend
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Select the demonstrative pronoun:
A. These flowers are beautiful.
B. He likes his car.
C. That house is mine.
D. They are studying.