When I got on the bus, I ___ I had left my wallet at home.
Some of the suspects(嫌疑犯) refused to answer and kept their mouths shut.
This photo of mine was taken__________ stood the famous high tower.
--Do you live____________ near Jim? --No, he lives in another part of the town.
On the long journey, Peter ________ a most interesting guide. We all had a wonderful time.
__________ entered the office when he realized that he had forgotten his report.