Stephen Hawking believes that the earth is unlikely to be the only planet_______life has developed gradually.
Though they don't live in the same city now,he manages to be informed________how Tony is getting along.
Houses________the government in this town are all being used to accommodate disaster victims.
When________with a problem,you'd better try to solve it by discussing it with your parents.
French author Le Clezjo,a brilliant novelist,________as a child of all continents,won the Nobel Prize in literature in October,2008.
The old man lives________on a(n)________ island.