we have a growing population and we are_____in need of more and more food.

题目

we have a growing population and we are_____in need of more and more food.
A:so
B:hence
C:however
D:therefore
为什么选D
为什么?

答案

therefore是"因此"的意思``可连接两个分句`
而SO应放在句子或分句的句首``应该是"```and so we```"``
however是"然而"的意思`