Which do you like,tiger or koala

His writing is so confusing that it’s difficult to make out ________ he is trying to express.

I heard Tom was badly injured in the football match.—, let’s go and see him.

Sorry, I have to _____ now. It’s time for class. — OK, I’ll call back later.

33．— We should recycle everything we can．— Absolutely．These may seem little things，but they’re not__________it comes to saving the environment