在空格内填上一个适当的完整的单词，该词的首字母已给出。
I’m so tired that I can h　　　　 keep my eyes open. 
I want to know more about your city. Can you give me some i　     about it?
“Please show your t　　　　,” the man in the theater door said to us.
“Help y　　　　 to some fish,” Mom said to my friends.
The back s　　　　 of the car is wide (宽的) enough for three people.