单项选择题

According to the passage, ______.

A．a long time ago, man did not know how to make use of wood
B．trees are not as useful as they were in the past
C．trees were more found in the past than they are today
D．people have 'always found trees useful

<上一题目录下一题>

热门试题

单项选择题

Some deserts were once ______.

A．very good lands
B．covered by ice
C．very cold
D．dry and useless

单项选择题

If you are the writer, what title do you give the passage

A．The Life of Jules Verne.
B．Jules Verne and His Two Fictions.
C．Jules Verne: Father of Science Fiction.
D．The Dream of Jules Verne Come True.