51. The world_______ by man himself now.

A. is being destroyed 　　　　　　　　　　　　　　　　　　　　　 B. are being destroyed

C. has been destroyed 　　　　　　　　　　　　　　　　　　　　 D. will be destroyed

50. The poor _______ to live on their own labour at the very moment.

A. is helped 　　　　　　　 　　　　　　B. are helped　　　　　　　　　　

C. are being helped　　　　　　 　　　 D. is being helped

49. All that ______ about right now should not be let out.

A. are talked 　　　　　　　　　　 　　　　B. is being talked　　　　　　 　　　　　　　　　　　　　 C. is talked 　　 　　　　 　　　　　　D. are being talked

48. The writer and teacher _______ a warm welcome now.

A. are given　　　　　　　　 B. are being received C. is being given　　　　 D. are being given

47. She is one of the girls in our class who ______ for the coming sports meeting now.

A. is being trained 　　　　　　 B. are trained　　　　　　　　　　 C. is training 　　　　　　　　　　 D. are being trained

46. The meeting ______ now is of great importance.

A. held 　　　　　　　　　　　 B. being held　　　　　　　　　　 C. is being held 　　　　 D. will be held

45. More than one patient ______ by the nurse at the moment.

A. are being taken care of 　　　　　　　　　　　　　　　　　 B. is being taken care of

C. are taken care of　　　　　　　　　　　　　　　　　　　　　　　 D. is take care of

44. Every boy and every girl ______ equally in China now.

A. is being treated 　　　　　　 B. are being treated　　　　　 C. treat 　　　　　　　　　　　　　　 D. are treated

43. The baby needs looking after, so you can't go out _______ you like now.

A. whatever 　　　　　　　　　　 B. whichever 　　　　　　　　　 C. whenever 　　　　　　　　　　 D. wherever

42. I'm checking the composition he has just finished ______ the possible mistakes in it.

A. correcting　　　　　　　 B. to correct　　　　　　　 C . making 　　　　　　　　 D. to make