请根据句意从方框中选择合适的单词，并用其适当形式填空，使句子通顺。
gentle welcome please I dentist
小题1:Mary accepted the suggestion. She decided to remove the bad tooth later.
小题2:It’s a experience to do the project with you.
小题3:—How can you speak such perfect English!
—I teach on the Internet.
小题4:You’re if you always say bad words about your friends.
小题5:The zookeeper told us to walk and not to frighten the birds.