补全对话
（T=Teacher，M=Mary，J=Jim，B=Bruce）
T：Hi，boys and girls！ ________can you do？Mary，can you sing？
M：No，I________．But I can___
____the violin．
T：Oh，_______can play the violin！ ____
___！ What can you do，Jim？
J：I can sing and play_______guitar．
T：OK！You and Mary can________to join our music club．Who can play the___
___？
J：I_______Bruce can play the piano．
B：No，I can’t．______I can sing and dance．
________（polite），he drove the old man out of the room and shouted at him angrily．
Be careful to cross the street when we meet heavy________（traffic）．
My mother can’t sleep well，and sometimes she even stays________（wake）the whole night．
Is it possible for us human beings to leave all the animals in the________ ________（自然环境）？
Some of my friends are interested in________ ________（集邮）．