题目内容
3. Students at a green school also learn ways to save energy and r at home.
3. recycle
2. Do you know the man? The man is picking up the waste paper. (合并为一句)
Do you know the man up the waste paper?
1. 担忧;担心
2. 如此多
3. 节约能源
4. The teacher's funny story made everyone (laugh) .
5. 听说你不能来了，我很遗憾。
I'm that you can't come
3. Be (care) ! There's another glass on the floor!
5. 在你充分利用这些东西之前，不要丢弃它们。
Don't these things you have made full use of them.
3. Though the problem was hard,they succeeded in (work) it out.
3. He is always busy (prepare) for the exams.
