It is her beautiful eyes （ ） attract most of the fans.

Most computer users are （ ） threat from computer viruses．

Give me your telephone number, （ ） I need your help.

Don’t get off the bus （ ） it has stopped completely.

My own problems seem insignificant _____ those of others.

She is a very _____ secretary; she almost never forgets anything or makes a mistake.

Any student who_____his homework is unlikely to pass the examination.

We should do as much as we can _____ our country better and more beautiful.

When the fog got thicker the search for that missing man was （ ） .

The father went to the door in （ ） to a knock from outside.

Air pollution is obviously one of the major _____ of city life.

The patient’s progress was very encouraging as he could_____get out of bed without help.