The physicist has been challenged by others in his field． [ ] A．respectable B．respectful C．respective D．respecting 题目和参考答案——青夏教育精英家教网—

三. 完形填空 (20分，每小题2分)

Every year people in many countries___42___English. Some of them learn at school. __43___study by___44___ . But it is too hard__45___learn another language well. People must work very hard.

Why do all these people__46____to learn English? It’s difficult to__47____that question. Many boys and girls learn English at school or at college.___48___it is one of their ___49___.They study their own language ,math and physic…and English. Many adults learn English, because it is___50___in their work. They want to read newspaper, books and some others in English to get more knowledge. And that is why___51___people in the world will learn English.。

( )42. A. study B. know C. understand D. speak

( )43. A. Others B. other C. The other D. The others

( )44. A. they B. their C. them D. themselves

( )45. A. that B. as C. for D. to

( )46 A. have B. wish C. need D. want

( )47. A. think B. answer C. ask D. talk

( )48. A. because B. so C. when D. why

( )49. A. subject B. the subject C. subjects D.a subject

( )50. A. interesting B. difficult C. easy D. useful

( )51. A. more and more B. many more C. fewer and fewer D. most.