choral
She __________ an old friend of hers yesterday while she was shopping at the department store.
The last time we had great fun was __________ we were visiting the Water Park.
As a writer, he used to go deep into life to __________ materials for his creation.
You should take advantage __________ this opportunity and try to make a good impression __________ them.
There was a (an) __________ silence between us after we were left alone in the sitting-room.