填空题
What's Peter Johnson's position in the company?
He is the __________________________________________Manager.
填空题
What places will the visitors see in the company?
____________________________________ and the laboratory.
填空题
How long does it take to look around the laboratory?
About__________________________________ minutes.
填空题
What measures are taken to ensure the visitors' safety?
The visitors are required to wear protective hard hats and__________________________.
填空题
What is not allowed to do during the tour?
_______________________________________________________