用所给词的适当形式填空 小题1:Ms Ba sometimes watches her students having fun ___________ (play) on the playground. 小题2:Go ___________ (cross) the bridge, you can see a tall tree with many flowers on it . 小题3:Children often enjoy ___________ (they) at school . 小题4:Sheep like to eat grass and ___________ (leaf). 小题5:Please ___________(be) quiet when you are with pandas in the zoo. 小题6:We sometimes listen to some ____________(relax) music when we’re tired. 小题7:Hunan Street is a good place ____________ (have) fun.. 小题8:I like elephants because they are so ____________(beauty). 小题9:Are ___________(thief) afraid of the police? Yes, very much. 小题10:Do you think koalas are very ___________(friend) to people?