您要查找的是不是：
- It is not clear whether cetaceans undergo dream sleep. 鲸类动物是否经历梦睡眠还不清楚。
- It is not clear whether Ms Veroni will attend the funeral. 现在还不清楚曼托瓦尼是否会出席葬礼。
- How they invent it is not clear to me. 他们如何发明的它我不清楚。
- How they invented it is not clear to me . 他们是怎样发明它的我不清楚。
- It is not clear what they want us to do. 我们不肯定他们要我们做什么。
- How they invented it is not clear to me. 他们如何发明的它我不清楚。
- It is not clear to me if Jack likes skating. 我还不清楚杰克是否喜欢滑冰。
- It is not clear to me if she likes the present. 还不清楚她是否喜欢这个礼物。
- It is not clear whosedog bit you yesterday. 昨天是谁的狗咬了你,不清楚。
- It is not clear who is behind the killing. 谁是这次谋杀的幕后策划者，目前尚不清楚。
- It is is not clear what is the cause of changing his idea. 他改变主意的原因不清楚。
- It is is not clear that he changes the cause of idea. 他改变主意的原因不清楚。
- However, it is not clear Funk was able to connect the arms. 但是，目前尚不清楚丰克的断臂能否被接上。
- It is not clear when or if Thailand plans to unblock the site. 目前还不清楚泰国何时或是否会解除对网站的封锁。
- It is not clear how Milosevic got the prescription antibiotic. 目前尚不清楚米洛舍维奇是如何得到这种处方抗生素的。
- It is far from clear(= it is not clear)what he intends to do. 他打算怎样做一点都不清楚。
- A few times it is not clear which event happened first. 有时,哪一事件先发生并不清楚。
- Besides, it is not clear what Mr Obama can do about those AIG bonuses. 而且，奥巴马总统对AIG奖金红利的处理方法也还不明确。
- It is not easy to get a foothold as an anchorman. 一个电视节目主持人要站住脚可不容易。
- It is not always reliable to argue by analogy. 用类推法论证并不总是可靠的。
