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
How many pens are there on the desk? _____ one.
A. There areB. There is C. It is
______ my good friend.
A. There areB. This isC. They’re
Look at the girl. ______ _____ Pat? Sorry, I don’t know.
A. Is sheB. Are you C. Is he
_________ are you? Susan.
A. Who B. HowC. Who
The plants ______ leaves
A. hasB. have C. are