1, less -> fewer

2, four-days -> four-day

3, have -> has

4, between -> among

5, Many -> Most

6, apparent -> apparently

7, of -> in

8, had missed -> have missed

9, a -> an

10, worst -> worse

11, them -> their

12, cook -> cooking

13, talking -> taking

14, to write -> writing

15, retyping -> retype

16, much -> many

17, their -> his

18, are -> is

19, to have to -> to

20, forward spending -> forward to spending

21, is advertised -> are advertised

22, just bought -> have just bought

23, do -> does

24, have to -> will have to

25, hisself -> himself

26, for -> on

27, highest -> higher

28, heat -> heating

29, between -> among

30, dollars -> dollar