My deskmate took my dictionary _______mistake last Sunday.[ ]

He plays basketball so well! Who taught _______?—He learnt it by _______.

At the meeting place of the Yangtze River and Jialing RIiver ,one of the largest cities in china.

Mr Green is well known all over the town. _____ he goes, there’s somebody who knows him.[ ]

There are four ________ students in our school.