[ Vocabulary and Grammar ]
Helen switches her mobile phone_____ so that she can study without interruptions.
A. on
B. off
C. up

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Modal Verbs › ViewWe ____ say no to bullying
A. must
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My sister made some cookies, and they ____________ very delicious.
A. tasted
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C. were tasted
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I can’t stand ………………….. when it’s hot.
A. running
B. run
