As we all know, independence is very ________ for youngsters because sooner or later they will leave their families and live alone. 

 I think nobody makes  _______ contributions to the company than him.

The teacher had a _______ look when he found that none of his students had finished his homework.

--- What you’ve said sounds _____, but can we really solve the problem in that way?--- It is worth a try.

My brother likes eating very much but he isn’t very ____ about the food he eats.