He has made a lot of films,but _______ good ones.
31. _____ our earth, otherwise it will be no longer fit for us to live on.
30. ---They are quiet, aren’t they? ---Yes. They are accustomed _____ at meals.
29. _____ the project as planned, we’ll have to work two more hours a day.
28. --- Is Bob still performing? --- I’m afraid not. He is said _____ the stage already as he has become an official.
27. ---Ken, why do you look so tired? ---I _____ myself _____ the climate since I came here.