单词辩音：找出下列划线部分不同的选项 (5分)
School students ___smoke because it is against the school rules.
Some people ___feel sick when they read a book in a car or on a boat.
Cars, buses and bikes ___stop when the traffic lights change to red.
—Where___ you ___last night? —I went to the supermarket and bought a present for my younger sister.
I ___ an article about first aid. It’s useful in emergency situation.
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