The chief manager has decided to put _____ he thinksis energetic, clever and capable to the position of the leadership of thecompany.

Modern forms of transportation and communication have done much to ______ the isolation（隔离）of life in Alaska.

They have not made any decision on ______ they are going to do to deal with the waste and control pollution

________ in a top-level university abroad is what manystudents wish for

a large amount of work _______, thechief manager couldn’t spare time for a holiday