（6）1.They bought a big toy car at last.
（3）2.So they went to the supermarket together yesterday.
（1）3.Dingding and Dongdong are good friends.
（7）4.Then they went home by bus.
（5）5.They saw lost of toys there.
（4）6.They went there very early.
（2）7.They wanted to buy some toys.
丁丁和东东是好朋友,他们想要买一些玩具,所以在昨天他们一起去超市了,他们很早就去了那里,他们看见那里有许多玩具,最后他们买了一个大的玩具车,然后他们坐着公交车回家了