PDF chapter test TRY NOW

1. Mystery has a tone of __________ that gives one an eagerness to solve.
   
 
2. In a busy world, humans do not even have time to wait and listen to their __________.
    
 
3. Applying oil in the __________ can ensure that the fan runs smoothly without any creaking.
   
 
4. As long as the fan made noise, the speaker felt like he had __________.