They had a pleasant chat ____ a cup of coffee.

They had a pleasant chat ____ a cup of coffee.
A during B over 选哪个为什么，为什么不用A

After they had a rest, they went on ___ they've got a toothache还是they have a ...还是they've had a ...? They had a good preparation for the project,so they had little__all the work. For many years they had wanted a child When ____with a strong enemy ,they had always reteated. They had a pleasant chat_____a cup of tea. it was not until they had a discussion where they argued a lot "They spend ( ) little they had ( ) a very expensive car." "They spent ( ) little they had ( ) a very expensive car." they overcame a lot of difficulty they had developing the personal computer怎么翻译