找出下列单词中划线部分字母发音不同的单词，并将其序号填入题前括号内：
（1）A. Canada B. England C. America D. grade
（2）A. cool B. book C. school D. food
（3）A. doctor B. orange C. carrot D. hot
（4）A. nice B. milk C. nine D. pineapple
（5）A. letter B. watermelon C. basket D. yellow
The geese are swimming the pond .
A. over B. in C. for
—Can I play football my father ? —Yes , can .
A. and , you B. with , I C. with , you
—Baby cats are kittens . I right ? —Yes .
A. called , Are B. call , Is C. called , Am
The puppies the dog’s children .
A. is B. are C. am
The pig three piglets . We call pigs .
A. have , they B. has , their C. has , them