下面这个句子,在 there be 之间插入了 are known to:There are known to be thousands of different species of beetles. 类似的好像还有:There was said to be a fire in that buil<...
这是一道语法题的标题(做题的具体要求):Join each pair of sentences. Be careful where you put the words in brackets. 觉得好奇的是,be careful 后面接了 where 引导的从句。好像 be careful 后一般...