None of the shoes in the shops are the right size. They are _____too big ____too small.
— Do you know there is a Bank of China near here? — Yes. There is one at the end of this road.
— Can you guess the MP4 player yesterday? — Sorry,I’ve no idea about it.
—Do you know _____ ? I'm going to see him. —Sorry, I don't know.
Let’s ask Mr. Wang for ________ about the earthquake.
I often make mistakes ___________ grammar..