We arrived at the airport to find our friends __________ for us. A. waiting B. being waiting C. waited D. wait 22. Dan’s shirt needs __________. There are many tears and holes in it. A. to mend B. to be mending C. being mended D. mending 23. Everybody heard the bomb __________. It was a tremendous noise. A. explode B. exploding C. to explode D. Exploded 24. I remember once when I was a child my mother caught me __________ my dog, and she whipped me for it. A. tease B. teasing C. to tease D. to be teasing “Ben is very upset with you!” “I know. I regret __________ him like that. I’m so sorry!” A. treating B. to treat C. I treat D. treat