一Yes,he's my      .

提示：

1)．三亚位于中国南部，空气清新；

2)．旅游景点：

亚龙湾(Yalong Bay)和天涯海角(Tianyahaijiao)等；

3)．旅游活动：钓鱼、游泳、潜水(diving)、冲浪(surfing)等；

4)．旅游必备品：太阳镜、轻便的衣服、雨伞等。

Dear Cathy,

    I'm very glad to hear that you're coming to China for your summer holiday．

    ……

Yours，

LiLing

①drink less water every day ②take a short shower instead of a bath ③turn off the water when we brush our teeth ④reuse some water to do something else ⑤try not to use water to wash our faces