单选题That boss _____ his workers work more than 12 hours a day.
单选题When you are speaking ______.
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单选题What does the man mean?
单选题John's girlfriend loved her dog very much.
单选题______ ago, there were few people in the world.
单选题The supermarket is only five miles ______.
单选题You should check your answers when you finish the paper.
单选题What nationality is the woman?
单选题Joy was sad because his pet cat______.
单选题When did she find she is seriously ill?
单选题— Are you Gao Hui? — ______
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单选题Betty was walking in the street then in order ____________.
单选题Mr. Dodds didn't believe that he was the policeman's uncle.
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单选题Breakfast in most American homes is a hurried ______ of milk, bread, juice or coffee.