1.Copernicus maintained that the earth ______ round the sun.
2.He was very ______ to go，but he had no choice.
3.Two-thirds of his property ______ lost in the fire.
D. have been
4.Remember， nothing hurts concentration ______ reading too slowly.
A. rather than
B. as well as
C. more than
D. instead of
5.Many people have made a ______ to a physical fitness program so as to maintain good health.
6.Scientists could see many things that most people would ______ to see.
7.She passed the examination ______ she studied very little.
A. in spite of
D. in that
8.The father wished the twins to be doctors， but ______ of them liked to study medicine.
9.John is so strongly built that he looks as if he ______ an elephant.
B. is lifting
D. could lift
10.The book was sold ______ 50 dollars.
A. in the price of
B. at the price of
C. with the price
D. of all the price in