26、It is i____________ to cheat the old or the young.

25、If we i___________ with nature by means of cloning , we are asking for trouble.

24、His behavior was ____________(accept) for us so we were very unhappy.

23、Bob left England with the i__________ of traveling around Africa.

22、In _____________(绝望)，she called Helen and asked for help.

21、It is o_________ that he is respectable.

20、His only chance of s___________ was a heart operation.

19、I would a_____________ you letting me know when you will be home.

18、the law p__________ children under the age of 16 from drinking.

17、I think we have a moral r___________ to help those who are in need.