While watching TV, you should take the opportunity to share your own____ with your kids.

Our society has changed and （ ） in it.

The underlined phrase “function below their ability shown by test scores” means the under-achievers ________.

My parents had （ ） send their six children to top colleges and graduate schools.

（ ） the price, it is a thousand times worth it.

In the experiment we kept a watchful eye （ ） the developments and recorded every detail.

You （ ） have said that, now Grandma’s really angry.

Scarcely had they settled in their seats in the cinema （ ） the film began.

His () of the aeroplane was correct in every detail and could really fly.

The boy is eager to （） knowledge in different fields.

Plastics is a kind of （ ） which is widely used in industry.

It is necessary to () a large vocabulary in learning a language.