1.Do you think that he had encountered(遇到,碰到) so many difficulties?
2.what Our teacher tells is plants develop(种子发育成植物) from seeds.
3.It's not good for parents to spoil (溺爱)their children
4.This Sunday I am going to the beautiful garden for a trip in our city
5.Australia is very large ,but the population（人口）is quite small