By using ears one can tell the direction ____ a sound comes.

Jack is a great talker. It’s high time that he something instead of just talking.

Would you like another cup of coffee—__________ It tastes good.

Heavy smog has returned to the skies of Beijing after a two-month break, with authorities ________ the pollution will remain due to unfavorable conditions.

Nowadays, though we are living a comfortable life, we have to learn to____ all kinds of pressure.