64.________it turns out, they did not know what a volcano was.(P45)

A.What　 　　　　 　　　　 　　　　 B.It　 　　　　 　　　　 　　　　 　　　　 C.That　　 　　　　 　　　　 D.as

63.The desert was once a green land with huge trees, but they were cut down and _____ resulted in the city______by sand---what a pity!(P43)

A.that; being buried　　　 B.which;was buried　　　 C.it; being buried　 D.this; buried

62.There was an ancient water system ________ ran through the middle of the city. (P43)

A.what　　 　　　　 　　　　 　　　　 B.which　 　　　　 　　　　 　　　　 C.that　　　 　　　　 　　　　 D./

61.It______that after the ash covered the people who failed to flee the city, their bodies nearly completely______and disappeared, ______empty spaces in the ash.(P43)

A.turns out; broke out;leaving　 　　　　 　　　　 　　　　 B.is turned out;was broken out;leaving

C.turns down;broke up;left　　　　 　　　　 　　　　 　　　　 　　　　 D.turns up;broke down;left

60.Many people were buried________, and________.(P42)

A.living; the city was so　　　　 　　　　 　　　　 　　　　 　　　　 B.alive; so was the city

C.lively; so the city was　　　　 　　　　 　　　　 　　　　 　　　　 D.live; the city was so

58.A British club________high school students________on a cultural tour of places ________there are lost civilizations.(P42)

A.arranged for;to go;where　　　　 　　　　 　　　　 　　　　 　　　　 B.arranged;to go;in which

C.arranged for;going;what　 　　　　 　　　　 　　　　 　　　　 D.arranged;to going;from which

57.People from ancient civilizations built many splendid buildings and objects, some of ________have disappeared, ________others remain today.(P41)

A.them; but　　 　　　　 　　　　 B.whom;while　　　　 　　　　 C.them;however　 　　　　 D.whom;but

56.Today, ________is the most common system used by blind people for reading and writing, and nearly every language,including Chinese, ________ its version of Braille for its people to use.(P39)

A.what; having　　　 　　　　 B.as; has 　　　　 　　　　 　　　　 C.that; having　　　　 　　　　 D.it; has

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55.At the age of 15, he created a system with patterns of 6________dots________each letter.(P39)

A.raised; representing 　　　　 　　　　 　　　　 　　　　 　　　　 B.risen; representing

C.rising; represented　 　　　　 　　　　 　　　　 　　　　 　　　　 D.rising; represented

54.In those days, books for blind people________paper________against metal wire ________letters.(P39)

A.using; pressed;to form　　 　　　　 　　　　 　　　　 　　　　 B.used;pressing;forming

C.used;pressed;to form　　　　 　　　　 　　　　 　　　　 　　　　 D.were used;pressing;forming