________ is stronger than steel and lighter than a feather is the silk ________ spiders make their webs.
---Jenny looks hot and dry. ----So ___ you if you had a high fever.
___ he will leave for Beijng.
--Excuse me ,could you tell me where the post office is ? ---Ok.Between the two white buildings ___ the post office.
The girl devoted all her spare time she had ___ others.
This is such a wonderful film ___ we have never seen.