There is plenty of rain in the southeast there is little in the northwest.A. becauseB. th

问题补充：

There is plenty of rain in the southeast, there is little in the northwest.

A. because

B. therefore

C. while

D. as

答案：

A. because

B. therefore

(答案→)C. while

D. as

解析：句意：在东南部雨量充足，而在西北部却雨量很少。A. because因为； B. therefore因此； C. while而； D. as因为，随着。这里表示前后也就是东南部与西北部的雨量相比的情况，这几个连词只有while可以表示前后是对比的关系，根据句意故选C。