Questions 21 and 22 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions.
Now, listen to the news.
How many members are there in the Arab League

A．help mariners.
B．improve ship design and sailing method.
C．study astronomy and mathematics.
D．improve his own skill as a sailor.

A．new England mystery stories.
B．the life of Emily Dickinson.
C．a comparison of poems between Dickinson and Whitman.
D．the poems of Walt Whitman.