A.

B.

C.

D.

E.

1.

faitfully

faithfuly

fathfully

faithfully

faithully

2.

sincereley

sincerily

sincerely

sincerelly

sincererly

3.

forward

forwad

forwarde

forwared

foword

4.

referens

referrent

referrence

reference

refernce

5.

recommand

recommend

recoment

recomment

recommiend