根据下列句子及所给单词的首字母写出各单词的正确形式（每空限填一词）。
1．--What c is your T-shirt?
--It's red．
2．It's very hot in s in Hangzhou，so you'd better come in spring．
3．I'm planning to leave on the t （=20th day of the month）．
4．Stephen Hawking is a great s ，who has worked out a lot of physical problems．
5．Tom is a little bit h ．He should eat less and exert else more．
6．Would you like to see the movie with me? I've got two t ．
7．You'll hurt y if you're not careful．
8．The shoes are too big，so I'd like to try a pair．
9．She likes reading very much．She often borrows books from the school l ．
10．I'm much taller than Nancy，so I have to sit b her．
1．color 2．summer 3．twentieth 4．scientist 5．Heavy 6．tickets 7．yourself 8．another 9．library 10．behind