Farming in the USA today is very different from that 100 years ago. In those days, farmers did not have many machines to help them. They had animals. ____This meant that farms were smaller than they are now. Farmers also worked in a different way in the past. In those days, farmers grew fruits and vegetables and kept cows, pigs and chickens to feed their families. ______.Farmers have a very special life in many ways. First of all, they can’t leave the job at the end of the day. They live on the farm and there is always work to do. Second, a lot of farm work is outdoors, so the weather is very important for farmers.A lot of bad weather means farmers will lose money. Finally, farmers work with  plants and animals. They understand nature better than other people do.Farm work changes with the seasons. Spring is a time for planting. Farmers are busy getting the fields ready and then planting the seeds(种子). In summer, farmers must take good care of the plants. Some may need water. Other plants may have problems with insects or diseases. Then in eady for picking. _____. Winter is a time for rest or for work on the farm machines.

A．It is also important for the success of their farms B．So all the farmers are happy to get them C．Today farmers grow things on the farms, so they can sell them for money D．But animals work slowly compared to machines