it is _(think) the population of the world has passed 6.5 billion so far请问应该是哪个时态?为什么呢?
问题描述:
it is _(think) the population of the world has passed 6.5 billion so far
请问应该是哪个时态?为什么呢?
答
填 thought
因为是被动语态,所以是be+ 过去分词
答
thought
be + 过去分词.