一、单句语法填空
1.The heated (argue) excited everyone present at the meeting.
2. (globe) warming is a real problem.
3.I’m really curious his life in space.
4.Exploring space has already made difference in the fight against world hunger.
5.As a result the weather,all the crops grow well.
6.The greatest attention at present is Mars because it is closer to Earth.
7.Exploring space provides the world many different benefits.
8.Luckily,there is a student acting a space expert.
