Question

根据汉语完成句子。 

1. 请保持室内整洁。  
    Please __         __ the room ___          _.  
2. 你对抽烟怎么看？    
    How do you feel                ________?  
3. 坚硬的座位使顾客感到不舒服。   
    Hard seats         ___ customers _______  _             . 
4. 不要使这个男孩长时间做作业。    
    Don't                 the boy ____         his homework for long.  
5. 他们必须知道如何制作食物。    
   They have to know                             _  _______ food.

Answer 1

1. keep; clean  
2. about smoking
3. make; feel uncomfortable  
4. make; do  
5. how to make