3. b) Read again and complete the sentences.
1 An 'obento' is ...... .
2 Its origin goes back to ...... .
3 You can buy an obento ...... .
4 To make an obento you need ...... .
5 It's important that obentos look ...... .
6 Obento portions for nursery schools should be ...... .
Unfortunately, the provided text does not give enough information to complete the sentences about obento. To complete them, you need to read the source text or listen to it.