单选题 A decision must be ______immediately _______stop the factory ______waste water without being treated.
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单选题 It is ten years ______ Miss Green returned to Canada.
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单选题 I gave John a present but he gave me nothing ______.
单选题 I did not notice that my dog was missing ______ a moment ago.
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单选题Scientists who study the brain have found out a great deal about how we learn.They have_____21_____that babies learn much more from the sights and sounds around them than we_____22_____before.You can?
单选题 It was last night ______ I see the comet.
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单选题Go back to your room and leave me__________
单选题 The old lady has never ______ the house since she moved in.
单选题 The government who ______ responsible for this event attempted to find a solution.
单选题 ______ is terribly tiring working late like ______ .
单选题选出下列选项中读音不同的选项（ ）
单选题 I want to know whether the weather will change ______ bit tomorrow.
单选题l couldnt go to the meeting because I had to（） my brother after his accident.
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单选题 When I had a problem she listened to me and suggested solutions. She was really ______.
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