I guess Tom and his sister Celia enjoyed ______ at the party.

I study in High School Affiliated to Southwest University. There are __________ students in our school. Nine ______________ of them are girls.

Look at the girl in the red skirt. ______is my new classmate.

Liu Yang is the first Chinese woman astronaut ______ has ever traveled in space.

One of the girl students can _______ a model plane.