$\frac{\text{3}}{\text{5}}\times \text{3=}\frac{\stackrel{\text{1}}{\text{<menclose notation="downdiagonalstrike">3 </menclose>}}}{\text{5}}\times \underset{\text{1}}{\text{<menclose notation="downdiagonalstrike">3 </menclose>}}\text{=}\frac{\text{1}}{\text{5}}$  

$\frac{7}{4}$  = ____$\frac{13}{9}$  =____    $\frac{17}{5}$  =____     $\frac{12}{6}$  =____

$\frac{4}{3}$  =____ $\frac{18}{9}$  =____    $\frac{10}{5}$  =____     $\frac{15}{6}$  =____ 

假如你是李玲,和美国的Peter是笔友,上次邮件中他提到想了解你对音乐的爱好,以及中国的一些礼仪。现请你根据以下信息给Peter回信。

注意：1邮件必须包括表格所有信息；

2词数：80左右,开头和结尾已给出(不计词数)。

Dear Peter,

    It was a really nice surprise to get your email. I think it’s a great idea to keep writing to each other. You told me that you like country music.……

    Look forward to receiving your letter.

Yours,

Li Lin