12、the mathematician is famorous all over the world,a planet named after him.
11、Sheep's wool can retain worm very well,so usually used to make winter clothes.
10、The guard won't let you enter in the office building unless you show your certificate
9、I will go to paris next monday if i successfully apply for my visa.
8、Planets do not give off light of their own,and only reflect sunlight.
7、In order to check for the thief's trace,the detective searched every corner of this room.
6、the temperature of this piece of metal went up to 60℃ by heating.
5、electric blanket can convert the electric energy into heat energy.
4、For collecting information about the atmosphere,a satellite has been launched in the earth's orbit.
3、The group of scientists are always busy conducting the experiment in order to find the cure for this disease.
2、as long as he keep working hard ,his dream will come true someday.
1、he has dreamed of being a astronaut and going to explore the secrets of the universe since she was in kindergarten.