根据句意完成已给出首字母或汉语提示的单词，使补全后的句子意思通顺、语法正确。
1. Tom and Sam are twins, but there are some d_____ between them．
2. Hawaii is f_____ for its beautiful beaches．
3. Our math teacher is a s_____ man．It seems that he never laughs．
4. Chinese medicine is now popular in many w_____ countries．
5. You can call Miss Zhang for more _____(信息)．
6. Your vacation _____ (计划) sounds wonderful．
7. My eating _____ (习惯) is pretty good．
8. Lots of _____ (游客) come to Qingdao every day．
