More and more farmers arrive in our city for the money-making jobs the before leaving that Houston.
A. were promised
B. have promised
C. promise
D. have been promised
网友回答
A. were promised
B. have promised
C. promise
(答案→)D. have been promised
解析：考查时态及语态。句意：在离开休斯顿之前，越来越多的农民被允许来到我们的城市从事赚钱的工作。结合语境可知本句描述的是现在已经完成的动作，主语是动作对象，故用完成时态，被动语态，故选D。