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问题描述：
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8：00-10：00
Swimming lessons by Mr Zhang
1、Mr Zhang teaches swimming for about () hours on Sunday.
14:30-16:30
Piano lessons by Miss White
2、Jenny wants to learn the piano.She can learn from () on Saturday.
答
1.two
2.14:30 to 16:30
第一个问的是大概几个小时
第二个问的是从几点到几点 from...to...