--- ______ do you improve your listening skills? --- I improve it _______ listening to tapes.
“Hero” is ________ action movie. I like it very much.
which sign shows us to a toilet?A B C D
He’s never been to the Great Wall, _______?
----There can be no life on the earth without water. ----That’s right. Water _____ everywhere.
I hate people ___________ talk much but do little.