题目选项分析

Unlike those of the United States,where farmers can usually depend on rain or snow all year long,most parts of Sri Lanka's rains 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.