Dinosaurs were fiercer than tigers（句意不变）Tigers were not________fierce_________dinosaurs.After he left school,he went to the USA for further study.（句意不变）After_______ ________,he went to the USA for further study,
问题描述：
Dinosaurs were fiercer than tigers（句意不变）
Tigers were not________fierce_________dinosaurs.
After he left school,he went to the USA for further study.（句意不变）
After_______ ________,he went to the USA for further study,
答