[ Modal Verbs ]
You ___ be careful while handling chemicals in the lab.
A. can
B. must
C. may
D. might

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Perfect TenseTOEFL GrammarLinking Words and ConjunctionSimple, Compound, Complex SentencesTime ConjunctionsModals AuxiliaryQuantifiers: too many, too much & enoughGerund NounQuantifies and Modals of DeductionPast Simple and ContinuousOther quiz:
Grammar › ViewYou can now communicate ………….…… your friends online using your mobile phone.
A. of
B. in
C. for
D. with
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Which word best describes someone who enjoys being alone and being quiet?
A. outgoing
B. energetic
C. reserved
D. empowering
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A. best
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C. good
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Grandfather isn’t feeling well. He ____ the doctor later today.
A. ‘s seeing
B. sees
