48. Can you introduce the girl____ the right to me?
A. in B. at C. on D. of
49. A sneeze cannot be performed voluntarily,____ be easily suppressed.
?A. nor it can B. it can not C. nor can it D. cannot it
50. He is still not here, he____.
A. may miss his plane B. could miss his plane C. should have missed his plane D. may have missed his plane
51. I do not doubt____ he will appear soon.
A. that B. whether C. if D. whatever
52. All substances,____, liquid or solid, are made up of atoms.
A. be they gases B. whether they are gases C. they are gases D. they can be gases
53. Only in recent years____ begun to realize the importance of
Internet.?A. people have B. have people C. that people have D. since have people
54. He was ____by the police with breaking the law.
A. charged B. accused C. captured D. sentenced
55. Some people do not show much____ in their choice of food.
A. discrimination B. recognition C. admission D. indecision