This pair of shoes ______ hand, and it ______very comfortable.
Look! The students are playing on the playground. Some are running, some are playing basketball, ________ are watching.
--_____ do you visit your grandparents, Jane?-- Once a month.
Beijing is the capital of China and it is one of ______ cities in the world.
There ______ something wrong with my bike today, so I have to walk to school.