I have seldom seen my father _____ pleased with my progress as he is now.

_____ the members cooperate well, the team will keep winning games.

The audience stood and （ ） at the end of the performance.

Little （ ） to win your friendship in this way.

I wrote it down_____I should forget it.

No one should blind himself （ ） the well-known fact.

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

The defense computers calculate way to （ ） the enemy missiles.

Scientists say it may be five or six years （ ） this medicine is tested on human beings.

_____ that the earth was flat?

He talks as if he _____ everything in the world.

When I was a child, I used （ ） to the river and bathe in the evening.