(2012·九江高二检测) The aim of the project is to encourage students to _______ new ideas on networks.
___, they set out to break the record for crossing channel swim.
So far nobody has claimed the money ___ in the library.
The workers ___ the glass and marked on each box“This Side Up”.
More and more high-rise buildings have been built in big cities ___ space.
Some insects ___ the colour of their surroundings to protect themselves.