题目选项分析

In comparison with the United States,whose farmers can usually depend on rain or snow all year long,the rains in most parts of Sri Lanka are concentrated in the monsoon months, june to September, and the skies are generally clear for the rest of the year.

In the United States, farmers can usually depend on rain or snow all year long, but in most parts of Sri Lanka, the rains are concentrated in the monsoon months, june to September, and the skies are generally clear for the rest of the year.