---Who has made a mess in my room?---Who else it but your naughty son?
101. A shy person dislikes ______ when he or she has to make a speech in front of a large crowd of people.
102. ______ I had done it I knew I had made a mistake.
103. _____ at the news, the girl said nothing but ______ into the chair and cry.
104. What do you think _____ to her? She is very angry now.
105. There is a new problem involved in the popularity of private cars _______ road conditions need to be improved.