根据下列句子及所给汉语注释，写出空缺处各单词的正确形式(每空只写一词)
These colorful     (气球)make the garden more beautiful than usual.  
Customs officers examined all        (行李) at the airport.    
You should think twice,but not jump at a        (结论).       
          (非洲)is the second largest continent in the world. 
They like movies so they go to the        (电影院) almost twice a week.  
On hearing the story,they burst into           (笑声).
He promised that he would be back on             (星期四).  
They took           (拥有) of the house as their own.
He lay on his          (胃) secretly to watch insects fighting.
To tell you the           (真相),I don’t agree with you.