Use of English PRO

Silk is a (0) THIN, but (1) ............ fibre that silkworms produce, and it can be woven into a very soft and smooth cloth. It was invented in Ancient China, and played an important (2) ............ in their culture and economy for thousands of years. Legend has it that the (3) ............ for making silk cloth was first invented by the wife of the Yellow Emperor, Leizu, about five thousand years ago. The (4) ............ for silk first came to Leizu while she was having tea in the imperial gardens, and a silkworm fell into her tea and produced a long string that was both strong and soft. Leizu then discovered how to (5) ............ the silk fibres into a thread, and she also invented the silk loom that wove the threads into a soft cloth. Soon Leizu had a forest of mulberry trees for the silkworms to feed on, and taught the rest of China how to (6) ............ silk. (7) ............ made of silk were extremely valuable in Ancient China, because wearing silk was an important way of showing how rich you were. Silk even (8) ............ as money during some Ancient Chinese dynasties.