How long have you known John? — Since he ______ to our class

His best known work that is _____ all praise can be seen in the museum

I am _____ about what I say becausecareless remarks are likely to hurt others’ feelings．

George is going to talk about the geography of hiscountry, but I’d rather he_______ more on its culture.

Don’t _______ the pater. It can be used again.