I would appreciate ______ very much if you help me with my English.

We asked John and Jerry, but ____ of them could offer a satisfactory explanation.

He is so young and short a man that I think he is   ________     but a professor of Northwest University.

Alone in a deserted house, he was so busy with his research work that he felt ___but lonely.

Mum disliked ______ when I behaved badly in front of the guests.