______ that no one was ever prepared for it.
A、SosuddenlydidthebadnewscomeA
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Professor Wang , _______ for his informative lectures, was warmly received by his students.
Tina_____haveknownthetruth,orshewouldhavetoldus.
Modernscienceandtechnologyhas_____communicationbetweenpeoplefarapart.
"_____ your meeting is!" he offered them his sincere congratulations.
You______bedrivenoutoftheschoolifyoudaretocheatintheexam.
