Questions with the keyword 'how long'

• How long have you been an engineer? by 689rbte33 to Abbie, Melanie, Paul, Stu, Tom Comments: (No comments so far )
• How long have you been a engineer? by Lulu and 1 other. to Abbie, Melanie, Paul, Stu, Tom Comments: (No comments so far )
• How long did it take to get your PHD? by Kyusu to Melanie Comments: (No comments so far )