64. The country has already sent up three unmanned spacecraft, the most recent _______at the end of last March.

A. has been launched 　　　　　　　　　　　　 B. having been launched

C. being launched 　　　　　　　　　　　 D. to be launched

63. Please remain_______ until the plane has come to a complete stop.

A. to seat　 　　　　　 B. to be seated 　　　　　　　 C. seating　 　　　　　　　　　 D. seated

62. 　　　 　that she didn’t do a good job, I don’t think I am abler than her. 　　　　 　　　

A. To have said　　　　　　 B. Having said　　　　 C. To say　　　　　　　 　　　 D. Saying

61. The. children went home from the grammar school their lessons _________for the day.

A. finishing　　　　 B. finished 　　　　C. had finished　　　 　　D. were finished

60. Peter received a letter just now ____________ his grandma would come to see him soon.

A. said　　　　　　　 B. says　　　　　　 　C. saying　　　　　 　D. to say

59. John received an invitation to dinner, and with his work ________, he gladly accepted it.

A. finished　 　　　　　B. finishing　　　 　　C. having finished 　D. was finished

58. When asked why he went there, he said he was sent there　　 for a space flight.

A. training　　　 B. being trained　　 C. to have trained　 D. to be trained

57. “Things _________ never come again!” I couldn’t help talking to myself.

　 A. lost　　　　　　 B. losing　　　　　　 C. to lose　　　　　 D. have lost

56. As the light turned green, I stood for a moment, not _________, and asked myself what I was going to do.

　 A. moved　　　　　 B moving　　　　　 C. to move　　　　 D. being moved

55. Jenny hopes that Mr. Smith will suggest a good way to have her written English 　　　　　　in a short period.

A. improved　　　　　　　　　 B. improving　　　 C. to improve　 　　　　　　　 D. improve