根据对话内容，从方框中选出能填入空白处的最佳选项，其中有两项多余选项。

A．I came to school with her this morning.

B．Then it must be Eliza's.

C．I didn't see her this morning.

D．Then whose is it?

E．It could belong to Sandy.

F．Its owner can't be a boy.

G．It can't be hers.

A：Excuse me，Mary.Is this your coat?

B：No，it isn't. Mine is white.

A：____ 

B：It might be Sandy's.She likes pink.

A：____ She wore a dress this morning.

B：How do you know that?

A：____ 

B：I see.Let's see what's in the pocket of the coat.Wow，here's a hair band.____ 

A：It might belong to Eliza.Eliza has long hair and pink is her favorite color.

B：Oh，there're some candies in the other pocket.

A：____ She likes eating candy very much.

B：Yes，you're right.Let's go to see her.

环北冰洋地区兴起旅游热。冻土地带留下机动雪橇的条条印迹，可能要50年才会消失。阿拉斯加州行政中心安克雷奇常住居民仅3万人，但每周游轮靠岸时人口骤增至10万。原住居民已换上西服，住进固定居所。直升机的轰鸣声惊扰着居民和动物。据此完成问题。
【小题1】环北冰洋地区旅游开发中的存在的问题主要是

A．破坏冻土	B．采挖珊瑚礁
C．水土流失	D．对当地传统社区文化的冲击

【小题2】结合材料，有关旅游活动中环境问题的叙述，正确的是
① 发展旅游业一般会对背景环境造成不同程度的破坏
② 旅游活动中产生的环境问题，都是由旅游者有意破坏造成的
③ 为了保护良好的环境，应该限制发展旅游业
④ 旅游活动中带来的污染，对当地居民和旅游者都有危害

Please check ________ passport and air ticket before leaving home.

一般来说，动物细胞体外培养需要满足以下条件
①无毒的环境 ②无菌的环境 ③合成培养基需加血清、血浆 ④温度与动物体温相近  ⑤需要O₂，不需要CO₂   ⑥需要O₂和CO₂

某同学分别用如图所示的甲、乙两种方法挑着同一物体行走，甲图中肩受到的压力____乙图中肩受到的压力；甲图中手施加的力____乙图中手施加的力．（填大于、小于或等于）．