A：OH﹣+2CO32﹣+3H+→2HCO3﹣+H2O
B：2OH﹣+CO32﹣+3H+→HCO3﹣+2H2O
C：2OH﹣+CO32﹣+4H+→CO2↑+3H2O
D：OH﹣+CO32﹣+3H+→CO2↑+2H2O
My mother ____ ____for us every evening.
作文。
题目：我喜欢的______
要求：
①选择你最喜欢的一种小动物来写，并把题目补充完整。
②写清楚小动物各个部位的形状、颜色等，及其你喜欢的原因。
③注意语句通顺、连贯，用词正确。
Bob comes from England. He is eleven. He likes to play basketball. His father Mr Brown works in a big shop in Shijiazhuang. Bob has a brother. His name is Mike. He is only four.
It is Saturday. Bob's family are all at home. Mr. Brown is sitting on a chair and reading a book. Bob is cleaning his new bicycle. His brother is playing with his dog.
