Don’t handle the vase as if it ____made of steel.

being fun and good exercise，swimming is a very useful skill

periment has_________ the possibilityof the existence of any life on that planet, but it does not mean there is nolife on other planets

When we are in danger, we need to stay_______.- Exactly. Only in this way can we come up with goodideas.

The house rent is expensive I’ve got about half thespace I had at home and I’m paying _______ here