我国目前许多地区水资源紧张，解决水资源季节变化大的最好办法是（    ）

水是人类不可缺少的物质。日常生活中不少人喜欢喝纯净水，市售的纯净水有些就是蒸馏水。有关这类纯净水的下列说法中，正确的是

    Hello! I'm John. I'm 1 the classroom. Look! This is a desk. The desk is 2 . 3 is nice. What4 is it? It's orange. My English book and my schoolbag are on it. 5 schoolbag is black. What's in the schoolbag? A book, a pencil box and a watch are in it. What's in the pencil box? There are (有) 6 pencils. One pencil is red 7 two pencils are yellow. Where is my key? My key is 8 . It isn't in my schoolbag. Is it on the desk? 9 , it isn't. I must find it. Please 10 me if(如果) you found it. My telephone number is 62718568.