24. —______ that company to see how they think of our product yesterday (A)
—Yes. They are happy with it.
A. Did you call B. Have you called C. Will you call D. Were you calling
25. ______ birds use their feathers for flight, some of their feathers are for other purposes.(C)
A. once B. If C. Although D. Because
26. Jane moved aimlessly down the tree-lined street, not knowing ______she was heading.(B)
A. why B. where C. how D. when
27. Many airlines now allow passengers to print their boarding passes online ______ their valuable time. (C)
A. save B. saving
C. to save D. saved
28. If you don’t understand something, you may research, study, and talk to other people _______ you figure it out.(C)
A. because B. though C. until D. since
以上为北京高考英语试卷的部分试题及答案，仅供参考。
