1. Choose the correct answer A, B, C or D for each of the gaps complete the following text.

Last month Lan's father ___(1)___ her to a glass factory. They visited the recycling workshop where the broken glass was smashed ___(2)___ small pieces, and the glass was washed with a particular detergent liquid. After that, it was dried up and mixed ___(3)___ some chemicals. The mixture was put into a very ___(4)___ temperature furnace to melt into liquid. The workers in the factory used long pipes ___(5)___ the liquid into a variety of shapes. All the glassware looks nice. Lan was very impressed by the journey.