In the past several weeks,many cities in China have been suffeing_英语解答

In the past several weeks,many cities in China have been suffeing from heavy fogs.
想问,in the past several weeks 不是一个过去时态的时间状语吗?为什么用现在完成时呢?

人气：179 ℃　时间：2019-12-06 09:53:45

解答

have been suffeing是现在完成进行时.In the past several weeks,是指过去的某个时刻一直延续到现在,所以用have been suffring,表示一直延续到现在,而且还在继续的状况.