mr.smith raises many _______ on his farm.

mr.smith raises many _______ on his farm. Smith raises many _______ on his farm Mr.Smith has many pigs on his farm.为什么要用on这个介词? 翻译14.The farmer raises many chickens in his farm. mr.smith has many pigs___his farm Mr Smith works on a p_____ farm mr.smith works on a p..farm Mr.Smith always takes _______ to do his work well. Mr brown and his wife are ( ) on the farm His job is to feed the _______ on the farm. This is Mr. Smith. _______ help I worked out many difficult Mr Smith gave his wife .