根据汉语完成句子。
1．这些树是1978年栽的。
These trees________ ________in 1978．
2．数百人在那次交通事故中受伤。
________ ________people________ ________in the traffic accident．
3．有新发明展出吗?
Are there________ ________ ________ ________ ________?
4．你看见的最有趣的是什么?
What was________ ________ ________ ________ ________ ________?
5．在那时它是用来做什么的?
________ ________ ________ ________ for at that time?
1．were planted 2． Hundreds of, were hurt
3． any new inventions on show
4． the most interesting thing you saw
5． What was it used
___________