He watched TV for an hour. At 8 o’clock he stopped _______ his homework.

This is a very interesting book with lots of new words. Please ______ it carefully.

In April, 2009, President Hu inspected the warships in Qingdao, _____the 60th anniversary of the founding of the PLA Navy. [ ]

___all kinds of difficulties,the work-ers have made rapid progress in the construction of the World Expo 2010 Shanghai.[ ]

He ______ his homework on Sunday.