It seems that living green is _____ easy and affordable.A small step makes a big difference.
The city was built by Alexander 1,300 years ago, after ______ many streets and places are named.
Last summer we visited abandoned farms ______ over a hundred years ago.
—Poor Steve! I could hardly ______ him just now!—Me neither. He has changed so much.
Tom says he ______ you and is helping you with the research at present.
I often go to the market with my friends _______ I can buy whatever I want.