一What's behind door? I can't open it. 一Let me see.Oh,there's a chair.
The pears in my basket are smaller than _____in Jim’s.
Bob is a football fan. He often asks me _______ football matches with him.
Vienna,the capital of Austria,isthe River Danube and The Blue Danube is auss.
Where's Tom? His mother ______ him now.
You will find ______ useful to learn even a little English.