When it comes to the human tendency to use the right hand much more often than the left hand, we seem to have __________ it from our animal ancestors, namely monkeys and chimpanzees.
40.It is important that she___________with Mr Williams immediately. 41.
42.______that there′s another good harvest this year. 43.
44.It'll be the first time____________the play. 45.
46.It's no use___________over spilt milk. 47.
48.It was great joy_________he received the news that his long lost son would return home 49.