29.he took a wrong bus , ______he was a full hour late on the first day he went to work .

A. On condition that B. which　 　　　　　 C. so that　　 　　　　　　　　　　 D. on the ground that

28. _____ is mentioned above, there are more and more trade between China and America.

　 A. Which　 　　　　　　 B. As　 　　　　　　　 C. That　 　　　　　　　　　 D. What

27. Our profits will be good _____ the dollar remains strong.

　 A. if　 　　　　　　　　　　 B. although　 　　　 C. unless　 　　　　　　　　 D. as long as

26. Mr. Smith is _____ a good teacher _____ we all respect.

A. such…that　 　　　 B. such… as　　 　 C. so…that　　 　　　　　　 D. so…as

25. The harder you study, ____ you will serve the people.

　 A. the better　　 　　　　　　　 B. better　　 　　　　 C. the best　　 　　　　　　 D. the better that

24. Speak to him slowly ____ he may understand better.

　 A. in case that　 　　　 B. so that　 　　　　 C. because that　 　　　　 D. least

23. Important ____ his discovery was, it was regarded as a matter of no account in his time.

　 A. for　 　　　　　　　　　 B. to　 　　　　　　　　 C. although　 　　　　　　　 D. as

22. We’ll wait here ____ you get back.

　 A. soon after　 　　　　 B. until　 　　　　　　 C. as soon as　　 　　　　 D. when

21. Richard is ____ boy that everyone in the class likes him.

　 A. a so bright　 　　　　　　　 B. so a bright　 　　 C. such bright a　　 　　 D. so bright a

20. I have kept that portrait ____ I can see it every day, as it always reminds me of my university days in London.

　 A. which　 　　　　　　 B. where　 　　　　　 C. whether　 　　　　　　　　　　 D. when