11.It was several hours before I was ____ of what was happening.
A)alive
B)aware
C)awake
D)ware
12.Understanding this article is ____ a seven-year-old child’s capacity.
A)on
B)up
C)down
D)beyond
13.Frequent cultural exchange will certainly help ____friendly relations between our two universities.
A)foster
B)utilize
C)cherish
D)raise
14.Such a difficult operation may not succeed, it’s a(n)____ gamble.
A)essential
B)fundamental
C)elementary
D)inevitable
15.The Chinese nation is____ for its diligence and courage.
A)disgusted
B)distinguished
C)discouraged
D)disappointed
16.____ right now, she would not be late for the class.
A)Would she leave
B)If she leave
C)Were she to leave
D)If she had left
17.The student was very excited when he ____ his teacher in this important lecture.
A)assisted
B)insisted
C)resisted
D)persisted
18.In a few days Mr.Barnstaple had ____strength of body and mind
A)retreated
B)recorded
C)recovered
D)replaced
19.He was bothered by the____ bark of dogs in the neighborhood every night.
A)constant
B)perpetual
C)long
D)steady
20.The Song Dynasty contributed three great inventions____ world civilization.
A)to
B)towards
C)with
D)in