Questions with the keyword 'how long'

• how long did you have to study for before you got to the status you have now? by SEGC to Clare, Glafkos, Paul, Samantha Comments: (No comments so far )
• How long have you been a scientist and what was your hardest field of work? by SEGC and 1 other. to Clare, Glafkos, Paul, Samantha Comments: (No comments so far )