36.The reason ()he gives for not coming is that his mother won’t let him.

38.In order not to be disturbed， I spent three hours ()in my study.

37.We are looking forward ()a trip to your country.

36.It’s no use()your chickens before they are hatched.

35.People who won’t work should be made ().

34.The teacher said that the earth ()around the sun.

33.Ever since the family moved to the suburbs last year， they ()better health.

32.Had he worked harder， he ()the exams.

31.If I ()harder at school， I would be sitting in a comfortable office now.

50.Humble ()it may be， there is no place like home.

49.It is high time that the international community ()together to fight against terrorism.