第 70 课: 更多的动词；疑问代词：谁，哪；副词：平时-2

Astronauts wear space suits. 宇航员穿宇航服

Sometimes, girls wear dresses. 有时候，姑娘们穿连衣裙

Airplanes have wings. 飞机有机翼

Birds have wings. 鸟有翅膀

Clocks have hands. 钟有针

Bicycles have wheels. 自行车有轮子

Sailors live on ships. 水手住在船上

Soldiers carry guns. 士兵拿枪