30. It was at midnight _______ the water pipes in some buildings cracked and _______.

A. when; bursted　 　 B. when; burst　　 　　　　　　　　　 C that; burst　　 　　　　　 D. in which; bursted

29. William, a famous writer, likes living in a house _______ the windows face to the south.

　 A. whose　　　 　　　　 B. of which　　　 　 　　　　 C. its　　　 　　　　　　　　　　　 D. and which

28. I wanted to pay the train _______, but my friend insisted. Finally I had to ______.

　 A. fare; give in　 B. cost; give away　 　　　　 C. money; give out　 　　 D. fee; give up

27. Just now the teacher was glad to see _______ students were practicing _______ English with each other at the English corner.

A. the number of; speaking　　　　 　　　　 B. a great many of; spoken

C. a great number of; to speak　　　　 　 D. a great number of; speaking

26. With the help of Nelson Mandela, blacks were __________ their future _______they could vote and choose their leaders, and get the jobs they wanted.

　 A. generous with; when 　　　　　　　　　　　　　　　　　　　　　 B. hopeful for; in which　

C. hopeful about; when 　　　　　　　　　　　　　　　　　　　　　 D. generous about; in which

25. Only when I left my parents for Italy _______ how much I loved them．

A. I realized　 　 　　　　 B. I had realized　 　　　　 C. had I realized　 　　　　 D. did I realize

24. She’s looking at me ________ she _______ me, but I’ve never seen her before in my life.

　 A. as if; knows　 　　　　 B. as if; knew　　 　　C. as though; knows　 　D. even if; knew