题目

如图,已知AD∥BC,要使四边形ABCD为平行四边形,需添加一个条件为______________. 答案：提示：添加AB∥DC,AD=BC等都可以.圈出正确的单词。1. Long long ago, there (was/were) two young men.2. Long long ago, there (was/were) a car on the street.3. Long long ago, there (was/were) a lot of children in the park.4. Long long ago, there (was/were) some apples on the table.