____can be done _____been done.
She was __________ by her English teacher, and now she has been a famous translator.
Katherine __________ on that poem for a month, and it's still not finished.
-I'd like to go to the cinema with you, Dad !-Sorry, my darling, but this film is __________ for adults only.
Qiandao Lake, widely known __________ a tourist site, is famous __________ its clear and drinkable water.
Our school __________ in the centre of the town, between two busy streets, so sometimes it's noisy.