4.—Did you know that China is one of the oldest countries in the world? —Yes,I did.Its much older than the US. 5.It is also very hard to take in air as you get near the top. 6.Why do so many people try to climb this mountain even though it is dangerous? 7.An adult ...
D.Death Valley is a beautiful but dangerous place. E.That was the year after gold was discovered in California. 四、完形填空 Most dog owners need to walk their animals every day. 15 , some are not walking their dogs in a proper way, leading to many problems. Here is some advice. Firs...
Water is important. We all 21 water. Most people drink about two liters(升)of water every day. Water 22 us to grow plants, wash and cook vegetables. In some countries, there is a lot of clean water. 23 , in some places, clean water is hard to find. This is a big 24 . Today,...
4.—Did you know that China is one of the oldest countries in the world? —Yes,I did.Its much older than the US. 5.It is also very hard to take in air as you get near the top. 6.Why do so many people try to climb this mountain even though it is dangerous? 7.An adult ...