Don't eat while reading.
Some continue to work part time, while others do volunteer work.
In the past, the boys were taught to fend for themselves while still very young.
During the past several years, many Japanese have been either killed or injured while traveling overseas.
Do you know anyone who hums while they work?
While they were away on holiday, their neighbours looked after the dog.
By the way, did you have any spare time to go sightseeing while you were there?
I am wondering if you would like to go and see Kabuki with me while staying in Japan.
Tom's father comes home once in a while, but he never sticks around for long.
The nation's trade balance improved last year as exports were strong, while imports remained steady.
They found out truth while examining a pile of relevant documents.
Tom should definitely visit an art museum or two while he's in France.
Last night Mizuki, very drunk, fell into the water while walking along the lakeside.
Father kept in touch with us by mail and telephone while he was overseas.
The area was cordoned off while fire fighters tried to keep the blaze under control.