At minus 130℃, a living cell can be ______ for a thousand years.
You’ll always be _______ whenever you want to visit us.
Can you help me with this math problem? I _______.
A cat is ______ a tiger ______ many ways.
.I have bought two ball pens, _______ writes well.
If you are _______ about Australian cities, just read the book by Dr. Johnson, which introduces them in detail.