There are more than three________ students in our school. Look, _________ students are having a gathering on the square.

Teachers should be able to give _____ instructions in class. [ ]

, the classroom is so dirty Itneeds ______ before we begin our class

Competing players from foreign countries made me ___________.

Thenew CRH train between Beijing and Shanghai _______ speed can reach about 380km/h will benefit people a lot