Aa
1. a&an
2. a/an & one
3. a bit, a little, not a bit & not a little
4. a moment, for the moment, at the moment & the moment
5. a number of & the number of
6. about & on
7. above & beyond
8. above, over & on
9. accept, receive & take
10. accident, incident & event
11. ache & pain
12. acquaintance, friend & companion
13. across, through & over
14. act & action
15. actual, real & true
16. actually, truly & in fact
17. adapt & adopt
18. add up & add up to
19.admire & envy
20.admit,allow,promise,permit & let
……
Bb
Cc
Dd
Ee
Ff
Gg
Hh
Ii
Jj
Kk
Ll
Mm
Nn
Oo
Pp
Qq
Rr
Ss
Tt
Uu
Vv
Ww