七年级英语：根据句意及首字母提示补全单词，完成句子。

tiring跑步是件累人的事，所以用tired不对
dangerous
expensive
used旧的
safe
boring
easy
early

1.tiring
2.dangerous
3.extraordinary
4.unfashionable
5.safe
6.boring
7.easy
8.early
小朋友以后作业还是要自己做，做错了不要紧，反复巩固才能真正提高自己的英语能力，这才是大家希望看到的

1.Running is tiring,I often feel tired after running .
2.It's dangerous to cross the street suddenly.
3.The skirt is very easy(穿着舒服的).
4.Jack's bag is useless,I saw it many years ago.
5.Cycling on the road is not safe because there are many cars and buses.
6.Basketball is boring for some girls. They don't like it.
7.Today's homework is easy
8.He always gets up early, so he is never late for school.

3. expensive