His first lecture is of great use to our development. But his latest one is ______ worth attending.

The river smells terrible. People_______ dirty things into it .

His aunt wants to get him _______ the radio, but he has had it _______ already.

How often do you visit your grandma in the village? —-I feel ashamed______________

What a beautiful day! —– Yes, it’s _____ that I’d like to take a walk