The school board has teachers to spare no effort to help the students who have fallen behind in studies.
38.____________in 1914____________the First World War broke out? 39.
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.