A____ his grandfather is very old , he is very healthy

问题描述:

A____ his grandfather is very old , he is very healthy

Although 引导的让步状语从句 意思差不多等于though、 even if 引导的让步状语从句,但是因为首字母给出是A所以Although 比较合理。

although 虽然他的爷爷非常老,但他很健康