A-A+
This passage says that the work of removing st
问题详情
This passage says that the work of removing stones______.
A．is usually done during the winter
B．was more difficult before machines were used
C．must be done again and again
D．is an interesting job children enjoy doing请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：C
解析：第三段提到，The work of removing stones never really ends... Farmers have to keep removing stones from the fields。也就是说新石头不断的出现，他们得不断把石头挪走。
