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。1.

The bell rang and every student had to________their examination papers.[ ]

Danny often helps me _____ my English and I help him to learn Chinese.

Peter some beautiful postcards for his friends yesterday.

Our City Park in1998. —Wow, it has the same age as me.