Jack, look! Everybody is doing homework quietly. ________ you make a noise in class?
It is in this very village, _______ Mary was born 35 years ago, ________ she built her first school, _____ inspires everyone to help her.
The boy was observed __________ basketball at eight o’clock yesterday.
______the youth to the rising sun, Mao Zedong paid more attention to the problems that the youth were faced with.
My uncle ____________ in Beijing for over 10 years. Now he lives in his hometown in Xuyi.
Peter said he ______ when he got there but we have never heard from him since then.