Speaking of what sort of smartness is most desirable in human __________，a friend of mine told me a story.

Their plan was ____.

.________ the sunlight for a long time is harmful to your skin.

It was ______that all of us were tired out when we arrived. 

---Sorry, but I can’t visit you tomorrow.
---Come whenever it is to your       .

----Must I do well in all the subjects, Mum?
----Sure, baby! As an old saying goes, knowledge is _________.

Have you heard that he, as well as his parents, ______ visited the Summer Palace? 
—Really?  No ______ he didn’t attend the meeting.

She won a Nobel Prize for her scientific ______.

Always read the ______ on the bottle carefully and take the right amount of medicine.

The _________ from the top of the tower was very wonderful.