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