对话填空.根据对话内容和括号首字母提示,补全单词
dad:which dog do (i john:i like the black dog .it is (t )than the white one.dad:do you like the shorter brown one?john:i think i like the taller dog it is (s ).dad:i like the white one ,it is (y ),its tail is 6cm longjohn:the biack dog is taller than the brown one,i (t )it is 30 cm tall.dad:i think the brown dog is only 20cm tall.jone:can i get a new dog i am older now .dad;no,you have two dogs already.