The whole lesson had lasted no more than 12 minutes!

The lesson lasted all morning and went very slowly.

One lesson lasted 45 minutes and students went to school six days a week.

The lesson lasted him pretty nearly all the rest of the season.

A typical main lesson could last about 2-4 weeks.

Due to financial reasons, the lessons only lasted three months.

His parents consented, however, the lessons lasted only one week.

With lessons lasting one hour each, the entire school day is six hours and 40 minutes, from 8:55 am to 3:35 pm.

One can only hope that the lessons and realities learned by these teenagers really do last a lifetime.

His lessons lasted three to four hours each, after which he would be fed or allowed to sleep.