To make members of a team perform better, the trainer first of all has to know their _____ and weakness.

 The _________ on his face was kind of strange, when I told him the news. 

I can’t say which wine is best—it’s a（n） _______ of personal taste.

Due to the widespread ________ of this medical technology, more diseases can be discovered and treated at an early stage.

There is _________ that her daughter will pass the exam to go abroad to study.