题目

It is the farmers who provide us with food，yet they are ________ by some citizens. A．looked forward to  B．looked down upon C．looked back upon  D．looked up to 答案：B　句意：是农民为我们提供粮食，但有些城里人却“瞧不起(look down upon)”他们。look forward to期盼；look back upon回顾；look up to尊敬，均不符合句意。

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