The rough draft of any research report should be edited to () that all data are correctly presented, that all equipments are listed, that all results are properly detailed.

A. was difficult to collect
B. came in a variety of forms
C. was difficult to get rid of
D. tended to be absorbed by physical objects

A. asking older people many questions
B. listening to skilled people’s advice
C. making mistakes and correcting them
D. doing what other people do