-What do you think of his concert? -Oh，no one does____．

--- Thomas does well in dancing. How about Bob?--- Bob is_____, I think. He once won the first prize in a dancing competition.

Mr Wu is one of ________ in our school.

If there are         trees, the air in our city will be         cleaner.

— Peter is _______ than you, right? —Yes, but he is _______ runner in our class.