What we have to admit is that never in the past thirtyyears __________ so greatly as today.

The Internet is a wonderful discovery, ___of great significance to people’s lives.

Good morning，Mr Brown. Would You please tell me the result ofthe exam— OK. You did quite well，You mademistakes.

Lucy fell asleep_______ she waslistening to music.

The air holds the feather back more than it ___ the stone.