Direction: There are 10 blanks in the following passage. For each blank there are four choices marked A, B, C and D. You should choose the One answer that best completes the passage.
Waves are beautiful to look at, but they can destroy ships at sea, 1 houses and buildings near the shore. What causes waves? Most waves 2 by winds blowing over the surface of the water. The sun heats the earth, 3 the air 4 and the winds to blow. The winds blow across the sea, pushing little waves into 5 ones.
The size of a wave 6 how strong 7 , how long it blows, and how large the body of water is. In small bay waves will never build up. But at sea the wind can build up huge, powerful waves.
A rule says that 8 a wave (in meters) will usually be no more than one-tenth of the wind’s speed (in kilometers). In other words, when the wind is blowing at 120 kilometers per hour, most waves will be about twelve meters. Of course, some waves may combine to form huge waves that are 9 . In 1933 the United States Navy 10 the largest measured wave in history. It rose in the Pacific Ocean to be a height of 34 meters.
1. A. too B. but also C. as well D. as well as
2. A. are caused B. is made C. formed D. are got
3. A. making B. causing C. having D. letting
4. A. to rise B. to raise C. to lift D. to go
5. A. big and big B. big and bigger C. bigger and bigger D. bigger and big
6. A. belongs to B. knocks down C. depends on D. makes up for
7. A. the wind was B. the wind is C. is the wind D. was the wind
8. A. the high of B. the higher of C. the height of D. the depth of
9. A. more higher B. much high C. very high D. much higher
10. A. was reporting B. reported C. was reported D. has reported

1. D. as well as
2. A. are caused
3. A. making
4. B. to raise
5. C. bigger and bigger
6. C. depends on
7. B. the wind is
8. C. the height of
9. D. much higher
10.B. reported