Hi !!
1- The town wouldn't have been destroyed if the volcano <u>hadn't been</u> so destructive.
2- If the inhabitants had evacuated early enough, the terrible disaster <u>wouldn't have been averted</u>.
3- If the weather <u>is</u> gloomy, we will stay in the hotel and read.
4- If <em> </em><u>heard </u>a loud, ......, I would return to the hotel immediately.
5- A tsunami <u>would be set off</u> if a nearly volcano erupted.
Explanation
if + present ---------> main clause = future
if + simple past ---> main clause = would
if + past perfect ----> main clause = would have
☺☺☺
There are different ways you could join the sentences, there's no exact answer. For number 1 I would write "Argentinosaurus, who is a herbivore, is the largest dinosaur discovered so far." For number 2 I'd write "The great white shark is the largest predatory fish, who is smaller than the whale shark."
Hope that helps!
I think that it’s because the man had no reason to kill him other then his eye so he never acted on it because he was nervous but one night he just saw the opportunity and took it. So in short my answer is : He had no reason to other then the old man’s eye and he was nervous