比较划线部分的读音，选出一个与其他三个发音不同的单词.

Though I ______ the telephone number many times, the foreigner couldn’t write it down.

Would you like _____milk?

－Are the keys yours?－No, they aren’t _____. I think they’re Jason’s.

_______ boys in my class can ski but _______ of them can do as well as Jim does.