All students are happy and (21) ___________ when the bell rings

All students are happy and (21) ___________ when the bell rings. It’s time (22) ___________ recess. Vietnamese students take part in (23)___________ activities at recess. Many students play games (24) ___________ blindman’s bluff or catch. Some boys play marbles and some girls (25) ___________ rope. Many students talk about last class or last night’s movie. Others eat and drink (26) ___________ chat to each other. But the most (27) ___________activity is talking. The school yard is very noisy (28) ___________the bell rings. Then everyone goes indoors and classes begin again.