Dear______,
I am writing to extend my sincere gratitude for _________ ( ).
If it had not been for your assistance in ___________ ( ),
I fear that I would have been_________( ).
Every one agrees that it was you who______________( ).Again, I
would like to express my warm thanks to you! Please accept my gratitude.
Yours sincerely
extend [?k'stend]
vt.
vi.
gratitude ['gr?t ?tju?d]
n.
assistance [?'s?st( ?)ns]
n.