Radium salts, which have been found to _____ in bones, give rise to cancers of the bone.
Hurry up! Switch over to Channel 8. The TV series __________ immediately.
—It’s good to see you again. —Yes. I keep all the letters __________ you wrote to me over the years.
I know the writer __________ story won a prize for the most imagination.
With the help of __________ people, I can be more successful in volunteer work.
—I’m going to see John tomorrow. —Don’t tell him the result of his medical examination when you __________ to him.