─It’s said that sandstorms seldom hit that area， they─_______，but things are different now.

History is the best teacher. It ________ records thedevelopment path of each country and foretells the future to us.

These plants ______ lack of water.— You should have watered them

Lack of money _____ her not continuing her studies．

Yuan Longping, known as the “father of hybrid rice”, doesn’t care about money or about ____ people call position.