Up till the time the news was announced, this kind of chemi

Up till the time the news was announced, this kind of chemical was used _______

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_______ I came into the office, the teachers were having a

_______ I came into the office, the teachers were having a meeting.A.While B.Wh

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Get to the top of hill, ______ you can see the whole city.

Get to the top of hill, ______ you can see the whole city.A.or B.but C.and D.so

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Rather than _______, he ran all the way home.

Rather than _______, he ran all the way home.A.walk B.walked C.walking D.to wal

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The ______ candle is still _______.

The ______ candle is still _______.A.lit…burned B.lighted…burning C.lit…burning

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