a big decision

[Ashiuhto]

Please check out the following sentences.

(1) Things like what college to enter, what career to pursuit, where to live, what job to take, what house to buy, and so on.
(2) These choices are the big decisions in our life.

[Ashiuhto]

There is a preceding sentence written as following.

Life is full of hard choices. Things like what college to enter, what career to pursuit, where to live, what job to take, what house to buy, and so on.
These choices are the big decisions in our life.

[The Dude]

OK, here's my red ink:

There should be a colon after the first sentence because, as Gillnetter has pointed out, what follows it is not a sentence. So: Life is full of hard choices: things like.....;

Some might say you could put a question mark after each questioning phrase, but as there are so many phrases this would make the sentence look rather strange;

Correct your spelling: pursue (verb), not pursuit (noun);

The last comma is unnecessary;

You should either leave out 'our' or change it to 'one's', or, if you want to keep 'our', change 'life' to 'lives' (the plural noun, not the verb). I'll let you work out the difference between them!

Otherwise it's fine.

[Ashiuhto]

(1) Life is full of hard choices: things like what college to enter, what career to pursuit, where to live, what job to take, what house to buy, and so on.
(2) These choices are the big decisions in our lives.
(3) These choices are the big decisions in life.

[The Dude]

Er - 'pursuit'? READ THE RED INK!

2 and 3 are now both fine and mean the same. Take your pick.

[Ashiuhto]

Sorry, I made a mistake again.

Life is full of hard choices: things like what college to enter, what career to pursue, where to live, what job to take, what house to buy, and so on.

[The Dude]