The United States has many different kinds of climate（气候）．On the west coast（海岸），the temperature changes very little between summer and winter，but the north central states（中部各州）have a very different kind of climate．In these states，people wear light clothes during the summer，and they need heavy wool or fur clothes in winter．
In the southwest，the climate is quite warm during the winter，but hot in summer．
In the eastern part of the United States，summer temperatures are very different from winter temperatures．Summers are usually hot，and winters are usually cold．Spring temperatures are comfortably warm，and autumn temperatures are quite cool．
Years ago，people in the cold areas（地区）of the United States did not often get vegetables and fresh fruits during the winter．Today trucks and trains carry fruits and vegetables very quickly to all parts of the United States．In this way，Americans“send their climate”to people in other states．
In the north central states，people wear________clothes in summer and________clothes during the winter．

A．silk；linen

B．light；heavy fur

C．wool；cotton

D．wool；silk

The climate in the southwest is________during the winter，but________in summer．

A．quite warm；little hot

B．quite cold；very hot

C．comfortably warm；rather hot

D．a little cold；rather hot

Today________parts of the United States can get fruits and vegetables in winter．

A．not all

B．a few

C．most

D．all

Which statement is true according to the passage？

A．Most states in America have almost the same climate．

B．The climate in the west of the USA is almost the same as that in China．

C．Now Americans don’t worry about eating fresh fruits and vegetables．

D．In winter，most Americans have to wear heavy clothes．

The best title（标题）of the passage should be________．

A．The Climate of the United States

B．Vegetables and Fruits

C．The Climate and Fruits

D．The United States