【简答题】根据课文填空 Water had also appeared on other planets like Mars but, 1 the earth,it had 2 later. It was not immediately obvious 3 water was to be 4 to the development of life. 5 many scientists believe is t...
【简答题】Task III Summary Read the text ( P 30 ) carefully and fill in the blanks. Dinosaurs lived on the earth tens of millions of years ago. There were many different kinds and before long a rare new 1. __...