79．With the help of the　　　　 (special) trained dog, he has a normal life．

78．Never give up　　　　 (achieve) your dreams, though you've met a lot of difficulties．

77．If you have a chance to go to another country, you should try　　　　 (not break) the rules of etiquette．

76．My recorder is broken．I'll have it　　　　 (fix) up this afternoon．

75．What will you do after your work　　　　 (finish)?

74．When you do your homework, you must be as　　　　 (care) as you can．

73．It's hard　　　　 (imagine) how they can improve English so quickly．

72．The raincoat is used for　　　　 (keep) off the rain．