Thanks Evisse. :)

If ______ and ______ had not argued, then ______ might not have been able to rescue ______.

snaga, shagrat, sam, frodo

You got three out of the four ...

Gorbag, Shagrat, Sam, Frodo?

Those are the fellows. Please proceed Fingolfin. :)

If ______ didn't marry _______ then ________ probably wouldn't have fallen.

Eomund, Theodwyn, Witch-King

I suppose that fits, but I'm looking for first age people.

Hint: For the last one, think of a place, not a person.

Tuor, Idril, Gondolin?

The last one is correct. The other two aren't :).

Aredhel, Eöl and Gondolin then?

Sorry for taking so long. You're right :).

If ___ ____ __ ______ hadn't attacked _______, then ______ might never have been born.

the forces of Morgoth, Dorthonion, Dior?

Good one, but no.

How about- the forces of Morgoth, Gondolin, Elrond?

Elrond is correct.

The sons of Feanor, Doriath, Elrond?

Bingo!

If _____ didn't follow _____ then he wouldn't have died.

Hunthor, Turin?

Yep :).

If ____ hadn't been a descendant of ______, then ______ wouldn't have died.

Aragorn, Isildur, Aragorn

Probably a bad guess, but:

Túrin, Húrin, Beleg?

None of those.

Maegiln, Eol, Turgon?

Or, less likely, Frodo, Bilbo, Gollum?

Nope.

Aragorn, Elros, Arwen?

Probably an awful guess but...

Elrond, Earendil, Elros

Both wrong.

HINT: Think 3rd Age.

Bard, Girion, Smaug?

Bullseye. ;)

**10 day rule**
 

If____didn't create _______, _____ the dragon wouldn't have been defeated.

hmmmmmmm........
 

heres a shot in the dark

Sauron, the one ring, Smaug?
because bilbo used the one ring to steal the cup which made smaug come out of his lair and got shot by that archer guy...who became mayor of lake town

Dwarves, the black arrow, Smaug. Or maybe Eöl, Anglachel, Glaurung.

no and no

Then maybe...
 

If Eru didn't create Eagles, Ancalagon the dragon wouldn't have been defeated.

still no says Tom!

Earendil, Vingilot, Ancalagon? or less likely,

Dwarves, ore, Scatha?