It is not the strongest of the species that survives, nor the most intelligent that survives. It is     ______ that is most adaptable to change.

We should always bear ____ in mind that our own determination to success is more important than anything else.

 That region has a lot of natural resources while this one has ________.

A botanist who speaks and writes English is in closer touch with the scientists in other countries than 　　　　who doesn’t．

He said, “＿＿＿＿＿ a long way to school. ＿＿＿＿＿ a long way to go yet before we arrived.”