【简答题】The disappearance of large animals, such as dinosaurs, _______ scientists' . 2. Many years ago, scientists didn’t ________ the reasons why dinosaurs died out. 3. If the black air _________ the sunl...
【简答题】Hello everyone! 1 to see you all here today! It is 2 for me to 3 . For 6 years 4 in this school. I'm lucky to 5 like you here. I'm 6 that so many of you would come here toady 7 . Tomorrow I'll 8 in 9 ...