that; it
then; that point (in time); that time
which (of three or more)
hey; oi; come on; look; listen
huh?; eh?; what?; oh; hey!; look!; listen!
それは私のかばんです。
That's my bag.
それは昨日買ったばかりのペンだよ。
That's a pen I just bought yesterday.
それを知っていたらもっと早くに教えてほしかった。
If you knew that, I wish you had told me sooner.