如果下降5米，记作-5米，那么上升4米记作（ ）米；如果+2千克表示增加2千克，那么-3千克表示（ ）。
+4或4；减少3千克
用所给单词的适当形式填空.
1. Miss Lee had us______ (use)a knife ______ (carve)a pumpkin.
2. She asked us______ (cut) open a pumpkin.
3. They decided______ (leave) at the end of this month.
4. People called the boy Jesus Christ because Christ_______ ( mean) saving.
5. The teacher made him______ (finish) homework on time.
“六军恸哭俱缟素，冲冠—怒为红颜。”出自明末清初诗人（）的《圆圆曲》。
