In the future, more ______ should be placed on the education of the young.

Asyoulikepopmusic,__________Ilikeliterature.

Senior members of the staff competed eagerly ________ the position of sales manager in the company.

We must ______ that the experiment is controlled as rigidly as possible.

Whenhesuddenly________upthesubjectofgeneticengineering,therewasanembarrassedsilence.