The local government announced that only when the fire was under control ________ to return to their homes.
A£®the residents would be allowedB£®had the residents been allowed
C£®would the residents be allowedD£®the residents had been allowed
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_______ after the race that he didn¡¯t know what to say before so many reporters.
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C£®So the champion was excitedD£®So was excited the champion

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John opened the door. There    he had never seen before.
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C£®did a girl standD£®stood a girl

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Mary enjoys home-made food, so she seldom, ________, eats out.
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Not until 2012 _____ to a Chinese writer for the first time.
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B£®was awarded the Nobel Prize in literature
C£®was the Nobel Prize in literature awarded
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The computer was used in teaching. As a result, not only _______, but students became more interested in the lessons.
A£®saved was teachers¡¯ energy
B£®was teachers¡¯ energy saved
C£®teachers¡¯ energy was saved
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Only by practicing a lot _____ our English well enough to communicate with foreigners.
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One of the sides of the board should be painted yellow£¬and________.
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If _______, these injuries can develop into more serious problems.
A£®left untreatingB£®left untreated
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