题目

阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。 It wassummer, and my dad wanted to treat me to a vacation like never before. Hedecided to take me on a trip to the Wild West. We tooka plane to Albuquerque, a big city in the state of New Mexico. We reached Albuquerquein the late afternoon. Uncle Paul, my dad's friend, picked us up from theairport and drove us up to his farm in Pecos. His wifeTina cooked us a delicious dinner and we got to know his sons Ryan and Kyle. Mydad and I spent the night in the guestroom of the farm house listening tothe frogs an一个两位数，个位数字为a，十位数字比个位数字大1，则这个两位数可表示为（ ）A.11a－1B.11a＋1C.11a＋10D.11a－10