Passage One

　　Questions 11 to 13 are based on the passage you have just heard.

　　11. A) It can be used by farmers to protect large buildings.

　　B) It was brought to the northern USA by Asian farmers.

　　C) It has done more harm than good in the southern USA.

　　D) It was introduced into the USA to kill harmful weeds.

　　12. A) People will have to rely on kudzu for a living.

　　B) They will soon be overgrown with kudzu.

　　C) They will become too hard to plough.

　　D) People will find it hard to protect the soil.

　　13. A) The farmers there have brought it under control.

　　B) The factories there have found a good use for it.

　　C) The climate there is unfavorable to its growth.