look! Everybody is doing homework quietly. ______ you make a noise in class

Mr. Green stood up in defence of the 16-year-old boy, saying that he was not the one _____ . [ ]

In 2001 the Chinese people were always in high spirits, for pieces of exciting news came to China ____ [ ]

Mr Smith will teach _______ English next term.

Was it near the bridge ____ the car accident took place?