He was nominated（ 提名……为侯选人）for the best actor____.

I can’t say which wine is best . It’s a(n) ______ of personal taste.

He is not a(n)________, only  a(n) ___________.

Many countries are increasing their use of natural gas, wind and other forms of ______.

Jane is honest and never tends to hide her opinion. She must give you a(n) _____suggestion about it.