2 . The instructions of the machine were s______ confusing, but she managed to figure them out.(a little) (根据首字母单词拼写)

3 . Each color in the flag r______ a different aspect of the country’s history. (to stand for something) (根据首字母单词拼写)

9 . 假如你是李津，你的英国笔友David上周写信询问你的体育爱好。请根据以下要点给他写一封回信，内容包括：
(1)你喜欢的运动项目及原因；
(2)你现在参加该运动的情况；
(3)问对方的体育爱好。
要求：
(1)不少于100词；
(2)开头和结尾已为你写好，不计入词数；
(3)可适当发挥，以使行文连贯。
参考词汇：
Dear David,

I am glad to receive your letter.

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Looking forward to your reply.

Yours,

Li Jin