【推荐1】Secondly, space exploration has already _______________________________(已经促进了有科技提高)that benefit us all. （根据汉语提示完成句子）

【推荐2】I will be more than happy to ______________ in this regard.
如果这方面有所改善我会非常开心的。

【推荐2】世界各地霍乱的威胁大幅降低。
And the threat of cholera around the world ________.

【推荐3】在自来水公司开始销售干净清洁的水后，世界各地的霍乱威胁大幅减少（see...）。
After the water companies began to sell clean water, the threat of cholera around the world ________.

【推荐3】您的美术馆将要举办中国画展，所以我写信申请成为该画展的志愿者。
A Chinese Painting Exhibition _________________, so I’m writing to _________________.

【推荐2】我认为，关于应采取措施预防暑期成绩下滑，老师们有个合理有效的观点。（根据汉语提示完成句子）
As far as I am concerned, our teachers have a____________when it comes to taking precautions against the summer slide.

【推荐3】A high fever usually indicates_________(严重的疾病). （根据汉语提示完成句子）