Read the following leaflet and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 7 to 12.

SHIRASHIMO POWER PLANT EMERGENCY ALERT!
___(1)___ recent developments, it is crucial to follow the preventive ___(2)___ at Shirashimo Power Plant to ensure safety. First, always check the equipment before operating machinery to avoid unexpected failures. For protection, all workers are encouraged to ___(3)___ safety drills, which will ensure everyone is prepared for any emergency. In addition, it is important to monitor the plant's electrical systems consistently to avoid the risk of electrical ___(4)___.
___(5)___ key aspect is to follow safety guidelines and keep your surroundings free from ___(6)___ materials. Regularly inspect the work area to eliminate potential dangers and stay updated with safety training programs to enhance overall awareness and create a secure working environment.
(Adapted from https://www.power-technology.com)