Mrs Smith is my teacher．At school she____us English．Her English is very good so we all like her．She has got two daughters，Gina and Helen．They are____at our school．So I know some things about them Gina____English very well．Helen is good at music．She plays the____very well．She is in the Music____．There,she and our music teacher Ms White help students with the piano．

小冬的物理笔记上记录了如下信息，其中正确的是（　　）

方程２ｘ－３ｙ＝５，ｘｙ＝3，x+$\frac{3}{y}$=3，３ｘ－ｙ+２ｚ＝０，x²+y=6中是二元一次方程的有（    ）个。

根据短文内容，从方框中选择恰当的单词完成句子。所有单词在填入前不需要进行词形转换，每个单词只能用一次，每空只能填一词。

 At the weekend, many ____  people in the UK do some sports on Saturday morning, and maybe they____  shopping in the afternoon. On Sunday they get up____ . They usually see friends and have lunch with ____  family on that day. In the afternoon they sometimes go for a ____ . But on Sunday evening, it’s time for homework.

有关量筒的用法正确的是（　　）