八下英语作业本 人教版 第八单元第5节题目
（1）
1.The students are too excited.To have lessons.
2.We can't run fast .enough to catch the train.
3.I am too tired.to go on working.
4.It's unusual for him to speak five languages.
(2)
1-5BCDAC 6-10BDABD
（1）
1.The students are too excited.To have lessons.
2.We can't run fast .enough to catch the train.
3.I am too tired.to go on working.
4.It's unusual for him to speak five languages.
(2)
1-5BCDAC 6-10BDABD