_____ 500g of honey, a single bee would have to make about 10 million trips from the hive to the flower and back again. A Producing B To produce C Being produced D Having produced
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The police the murderer everywhere when he suddenlyin the hospital.
25.--She looks very happy.She ________have passed the exam. --I guess so.It’s not difficult after all.
24.Progress _________ so far very good and he is sure that his new book will be finished on time.
23._______ the meeting himself gave them a great deal of encouragement.