阳光绝缘体

1. 你们有单人房吗？
do you have any ???  rooms available?
2. 还有20码的鞋吗？
Do you have any  the size of 20 shoe  available?
3. 我想见约翰逊先生。好的，我看看他在不在
i want to see Mr. Johnson.
   

My english was not  good!  i don not know the true anwer