增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

注意：每句只涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下画一横线，并在该词下面写出修改后的词。
①All hope was no lost.
②The two millions people of the city were asleep as usual that night.
③In the farmyards, the chickens and even the pigs were very nervous to eat.
④It seemed as if the world was at end.
⑤She loves the boy as if she was his mother.

物体做平抛运动的规律可以概括为两点：

①水平方向做匀速直线运动；

②竖直方向做自由落体运动．

为了研究物体的平抛运动，可做下面的实验：如图所示，用小锤打击弹性金属片，A球水平飞出；同时B球被松开，做自由落体运动．两球同时落到地面．把整个装置放在不同高度，重新做此实验，结果两小球总是同时落地．则这个实验（   ）