单项选择题
A．there was not enough food there in the winter B．there were too many birds C．there were too many glaciers D．there was too much daylight
The main topic of the passage is （）A．conditions in the ...
单项选择题The main topic of the passage is （）
A．conditions in the work place B．the freedom of industries in the past C．changes in industrial production D．the safety and health of workers and customers
A suitable title for this passage might be （）A．Wild Ani...
单项选择题A suitable title for this passage might be （）
A．Wild Animals B．Animal Kingdom C．Moss Growth D．The Lazy Animal
21（）A．livesB．staysC．sleepsD．plays
单项选择题21（）
A．lives B．stays C．sleeps D．plays
