29. _______ from the moon, our earth with water _______ 70% of its surface, appears as a “blue ball”.

A. Seen; covered　 B. Seeing; covering 　 C. Seen; covering D. To see; to cover

28. When I went to visit her, she was _____ the piano.

A. practicing to play　　　　　　　　 B. practicing play C. practicing playing D. practiced playing

27. --- Can you shoot that bird at the top of the tree?　　　 --- No, it’s out of _______.

A. range　　　　　 B. reach　　　　　 C. control　　　　 D. distance

26. The village I visited last week lies ______ the two roads meet.

A. where　　　　　 B. when　　　　　 C. in which 　　 D. after　

25. About 85% of the students ______ good at science subjects, and parts of them _____ very interested in biology.

A. is ,are　 　　　 B. are , are　 　 C. are, is 　　　　 D. is , is

24. Who ______ helped you work out the maths problem?

　 　A. was he　 　　 B. it was who C. was it that D. it was

23. ______ of the land in the district _____ covered with trees and grass.

A. Two fifth, is 　B. Two fifth, are　 C. Two fifths, is　 　 D Two fifths, are

22. There is only a little money ______ the trip.

A. available　　 B. available for C. available to　 　　 D. available in

21. My dictionary has disappeared. Who ______ have taken it?

A. should　 　　　 B. must　 　　　　 C. could　 　　　 D. would

20. ______ the size and nature of a business is, its main goal is to earn a profit.

A. Whatever 　 B. Whichever　 C. Whereas 　 D Because