公元前21世纪比公元前16世纪（    ）

人的听觉感受器位于（    ）

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.

学校到县城有28千米，全程需1小时，除乘汽车外，还需要步行一段路，已知汽车的速度为36千米/时，人步行的速度为4千米/时，则步行用了（　　）