There are two new buildings near the sea, and ____of them are very tall.

I am thirsty, Could you let me have _____ coke?

Boys, don’t lose____ in playing Angry Birds. It is bad for your eyes to play computer games for a long time.

This is my sister.        name is Linda.

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.