U.S.News____________rankingsofcollegessince1983.Theyareaverypopularresourceforstudentslookingtoapplytouniversitycampus.
A、maintainsD
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Under this____pressure some of the rocks even became liquid.
Mary tiptoed over and took the clock away because she hated to hear it（） when she was trying to go to sleep.
Mary tiptoed over and took the clock away because she hated to hear it___when shewas trying to go to sleep.
_____ at in this way, the present economic situation doesn't seem so gloomy.
The school is going the ________ mile to create the next generation of sporting stars thanks to its unique development program.
