4.2课时作业
Ⅰ.用所给词的适当形式填空
1．It was ________ (surprise) to see the boy there.
2．The table is covered with ________ (dusty) because it hasn't been cleaned for a long time.
3．Animals of that kind lived on the earth long before humans came into ________ (be)．
4．The animal acts very ________ (fierce). Don't stand close to it.
5．I ________ (intention) to have attended their wedding, but I was too occupied then.
