Earth is only home to everyone．Let's try to make it greener world to live in．（　　）

A．a；aB．the；aC．a；theD．the；the

How are the two college students getting on with their project work？

Pretty well． of them enjoys working with the local students．（　　）

A．BothB．AllC．EachD．Any

To people's great surprise，the old building still after the strong earthquake．（　　）

A．refusedB．remainedC．requiredD．reviewed

I know the city well that I don't need to use a map to get around．（　　）

A．quiteB．veryC．soD．such

Thanks for looking after me my illness，Millie．

Don't mention it．That's what friends are for．（　　）

A．throughB．againstC．withD．across