For many years, people（）electric cars. However, making them has been more difficult that predicted.

单项选择题What does the underlined’ word collapsed probably mean（）

A. Were destroyed.
B. Caught fire.
C. Were flooded.
D. Sank.

单项选择题What is the total number of deaths in the earthquake（）

A. 2,000,000.
B. Between 490 to 5,7002.
C. 200,000.
D. It was hard to know.

单项选择题What is generally thought the main cause of deaths in Chile（）

A. Landslides.
B. The tsunami.
C. Aftershocks.
D. The magnitude 9.5 earthquake.

单项选择题What can we learn about the tsunami waves generated by the earthquake（）

A. The tsunami waves as high as 25 meters arrived immediately after the earthquake.
B. The tsunami waves killed 200 people and sank all the boats.
C. The tsunami waves were very destructive.
D. The tsunami waves flooded half of the inland.

单项选择题Where did the largest tsunami damage occur（）

A. Concepcion.
B. Isla Chiloe.
C. Valdivia.
D. Valparaiso.

单项选择题30（）

A.shock 
B.sound 
C.song 
D.music

单项选择题29（）

A.busy 
B.urgent 
C.happy 
D.different

单项选择题28（）

A.stories 
B.jokes 
C.periods 
D.meals

单项选择题27（）

A.start 
B.part 
C.signal 
D.mark

单项选择题26（）

A.seeing 
B.hearing 
C.watching 
D.looking