Postage______,thenecklacewillcostyouatleast650yuan.

_____ofwatermakesDeathValleyadesert,butitisbynomeansdevoid.

Many workers were organized to clear away remained of the World Trade Center.

here has been a great increase in retail sales , ____ ﹖

This robot is supposed to save a lot of labor, but it remains a problem if it ______.