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
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
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。