We didn’t know you were in trouble at that time; _______ we would have given you a hand.

– I’m sorry for what I said. -- Forget it, I can’t remember _________.

 Nature reserves are very important for preserving many animals and plants, which would _______ run the risk of becoming extinct.

 Running a company is not ______ a matter of hiring people ----they also need to be trained.

 I advise you not to ask him for advice, as he was not good at getting his ideas ____.