Some kinds of animals can ______ the color of their surroundings.
_________ advertisements are of great help, I don’t think we should entirely rely on them.
---You know Mr. Green has been ill for days? ---Yes, I wonder if he is _________ better now.
--- I don’t know ___________ makes her different from others. --- Confidence, I think.
Ten years ago the population of our village was _________ that of theirs.
Friends are like leaves, ________ everywhere, but true friends are like diamonds, precious and rare.