Tax,______ can be used in public services, is very important to our country.

Mr. Morgan can be very sad _____, though in public

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________ they are observing can be tested in a practical way, scientists will use exp

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No one can use cell phones in any areas at the hospital ______ equipment might be affected

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______ can be used independently without being combined with other morphemes.A．Free morphe

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The authors purpose in writing the passage is to______.A．show that straw can be used to bu

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Public goods are those commodities______enjoyment nobody can be effectively excluded.A．in

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The electric shaver______before it can be used.A．must repairB．should be in repairC．has to

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