It was the training ________ he had as a young man ________ made him so excellent.

— Glen, what’s your opinion?— What surprised us was not what he said but the way ____ he said it.

The view ______ many scientists hold is ______ too much emission of carbon dioxide is destructive.

I want to buy a piano of high quality, _____ I can practise on every afternoon.

 That scientist ________ work is successful has been made a model worker.