Those farmers who ______ move from place to place with their animals in the past have moved into new houses at last.
A.could
B.might
C.would
D.should
网友回答
C解析考查情态动词：
A. could是can过去式，能，
B. might可以，
C. would过去常常，
D. should应该，句意是：那些过去常常带着动物从一个地方搬到另一个地方的农民最后搬到了新家。选C。