25.______ almost all our time to our schoolwork in the past three months, we have almost no time for fun and play.

A.Having devoted　　　　　　　 　　　B.Devoted 　　　　　　　

C.To devote 　　　　　　　　　　　　　　　　　　　　　 D.To have been devoted

24.He tried 　　　　　to persuade his friends to travel with him, so he traveled alone．

A.in store　 　　 　　 B.in vain　 　　　　　　 　C.in turn 　 　　　　　 D.in trouble

23.We agreed to accept ______ they thought was the best tourist guide．

　　　 A.whatever 　　　　 B.anyone 　　　　　　　　　　 C.whichever 　　　　　　　 D.whoever

22. Sealers and whalers were the first Europeans ________ to New Zealand, later followed by more Europeans, ________ for a better life.

A. coming; seeking　　　　　 　　　　　 　　B. to come; seeking　　　　

C. came; to seek　　　　　　 　　　　　　　 D. to come; to seek

21.A 31-year-old woman was still 　　　　　when rescuers carried her out and said "Thank you" to the people around her．

A.aware 　　　　　　　 B.available 　　　　　　　　scious 　　　　　　　 D.determined

20. -People say your little brother has been admitted into QinghuaUniversity.

-Yes. Never ________ he could achieve so much success.

　　　 A.had I thought　　　　　　　　　　　　　　　　　　　　 B.would I have thought　

　　　 C.could I have thought　　　　　　　　　　　　　　　 D.will I have thought

19.________ reducing pullution, man should pay more attention to conserving energy.

　　　 A.As well as　　　　　　 B.As long as　　　　　　　　 C.As far as　　　　　　 D.As soon as

18.I enjoyed very much the three years ______ it had taken me to study English at school.

　　　 A. which　　　　 B. what　　　　　　　 C. when　　　　 　 D. how