The researcher _______carefully the differences between the two phenomena.

A. explore
B. exploring
C. explored
D. is explored

Those involved in the accident have been _______ and found blameless.

A. investigate
B. investigating
C. investigates
D. investigated

My parents _______me not to go into the business world.

A. prefer
B. occupate
C. conduct
D. explore

His decision _______many years of investigation and research.

A. narrow down
B. is based on
C. investgate
D. is comprised of

The police have to _______ their list of suspects.

A. is comprised of
B. base on
C. narrow down
D. take into consideration

What aspects does a detailed self analysis mainly involve?