十九、It is conceivable that + 句子 (可想而知的)

It is obvious that + 句子 (明显的)

It is apparent that + 句子 (显然的)

例句:It is conceivable that knowledge plays an important role in our life.

可想而知,知识在我们的一生中扮演一个重要的角色。

二十、That is the reason why ~~~ (那就是…的原因)

例句:Summer is sultry. That is the reason why I don't like it.

夏天很燠热。那就是我不喜欢它的原因。

二十一、For the past  + 时间,S + 现在完成式…(过去…年来,…一直…)

例句:For the past two years, I have been busy preparing for the examination.

过去两年来,我一直忙着准备考试。