根據(jù)句意和首字母或漢語提示,將單詞的正確形式寫在相應的橫線上。
1. You must stop
s____________, nicotine (尼古丁) is bad for your health.
2. The girl s____________
a lot of time collecting stamps last year.
3.
We were glad to celebrate our motherland, China’s s__________ birthday on
October 1st, 2009.
4. I like ____________ (土豆) a lot, and my mother usually
cooks it in different ways.
5. Which are __________ (重的), elephants or sheep?