根据短文内容,完成下面的句子。 Can we live without salt (盐)? No, salt is very important to us. We need salt in our food. Animals need it, too. Most of the salt in our country comes from the sea water. People dig very big pools (池塘) and let sea water in. When the sun dries up (晒干) the water, people can get salt from the ground. The salt is white, clean and beautiful. There are a lot of salt wells (井) in Sichuan. A salt well is much like a water well. People bring the well water up to the ground and then dry it in big jars (罐子,坛子) over fire. In this way they get salt. We can also get salt from salt mines (矿). A salt mine may be found under the ground (盐矿石可能会 在地下被找到).  Some years ago, people in Jiangxi found a big salt mine and soon opened it. People there need salt from other places no more. In the northwest of our country ,there are many salt lakes. Some of these lakes are very big. The salt in a big lake will be enough for our people for centuries (世纪). 1. We can't live without salt, so _____. 2. We get most of the salt from _____.  . 3. People in Sichuan get salt from _____.  . 4. Some years ago, People _____ found a big salt mine and soon opened it. 5. In _____ of China, there are many big salt lakes.