In a Han Dynasty tomb, they found some precious jars and vases, _______ are valuable

We really appreciate our learning environment, _________ we can have direct communication.

Nowadays some protective parents want to______their kids from every kind of danger, real or imagined.[ ]

Big animals can be a lot of trouble. Maybe you should get asmall pet, like a goldfish.–______.

Make good preparations for your self-driving trip ______you’ll regret it when your car breaks down in a remote area.