Littleshiro So, in the sentence ' This is a hard problem. ', I should use 'that,' Yes. I would.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
LittleshiroSo, in the sentence ' This is a hard problem. I know it/that because I’ve solved one like this before.', I should use 'that,'
Yes. I would.
Littleshirobut I can also use 'it' if I want to mean 'this is a hard problem', shouldn’t I?
Yes.
CJ