—When did your brother begin to show his interest in medicine.—It was a Saturday _____ he noticed his classmate experimenting on a frog in the lab.
—Bruce,I really appreciate your handwriting. —________.
We were about to start out________ our friends called us up from Shanghai.
He suggested the person referred________ put into prison.
My mother liked this kind of dress________ and bought some material to make one at home.
You have no idea how she finished the relay race________ her foot wounded so much.