1 C（前面已有动词,后面要用分词表示伴随动作） 2 B(出差的意思) 3.TThe children are palying happily in the water.4.How a great moment the August 8th 2008 is!5.We often have meals in this reataurant.
Hi son! I'm leaving for Beijing on business trip and I'll be back next week. I am sure you will study hard and make a good progress! I will listen to your story when I'm back. I love you. Yours, Dad求采纳
