每年的____为世界无烟日，这一天，不准商店出售香烟 ，不准烟民在公共场所吸烟。

——Would you like       to drink? Tea, coffee or milk?
——Oh,        kind of drink is OK, thanks.

根据短文理解, 从A、B、C、D四个选项中选择最佳答案填空。

    One cold morning, an old woman had to 1 her doctor. When he came, she 2 him that her right leg hurt, and that sometimes she could  3 walk. She asked him what was  4  , as she had  5got such feeling.

    The doctor looked her over carefully, and then he said, "You are in a good 6  for a woman of your age. I think the trouble in your right leg is just a matter of old age catching up with you. We get all kinds of illness  7  we get older. The trouble will almost certainly 8  in spring." "I don't think so, doctor," she said. "My left leg is  9 , and it is 10  age as my right leg."

下列五种物质中①Ne；②H₂O；③NH₃；④KOH；⑤Na₂O，只存在共价键的是　 ____，只存在离子键的是　 ____，既存在共价键又存在离子键的是　 ____，不存在化学键的是　 ____．（填写序号）

下图为桃花、桃子及大豆种子结构示意图，请据图回答问题：
     
甲                      乙                 丙
（1）甲图中①④⑤合称为____ ，②和③合称为____ 。
（2）桃花中将来能发育成乙图中B的结构是____ 。
（3）丙图是大豆种子的结构示意图，其中1、 2 、4 、5合称为____ ，而种子萌发所需的营养物质贮存在____ 中。