找出划线字母发音不同的选项
Don’t worry about , mum. I’m old enough to look after .
---_____book is this? --- I think it _____ Carla’s. It has his name on it.
You don’t look . You’d better go to see the doctor.
---Excuse me, sir. Is the swimming pool open all day? ---. Only from 6:00 pm to 10:00 pm.
As volunteer teacher in the rural area，she has opened up students' eyes to the outside world.
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