语音知识。从下列每组单词中找出一个划线部分不同于其他三个的选项。
Now, ________, I’m going to give you some advice on how to learn English.
–In the old days， most teenages had to work for the landlord(地主)in the field to helptheir families, because their families couldn’t education for them. -What a pity!
Our teacher told us that light much faster than sound.
In our class _____ of the students _____ girls.
—It seems _____ you like to work with children. —Yes, they are so lovely.
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