The number of children who have lost parents to AIDS ___ to rise to over 26 million in 2011.
Linda's father isn't an engineer. Her mother isn't an engineer, ______ .
While the boy ______ down the street, the UFO _____ .
We didn't know the good news _________he told us.
I didn’t know ________.
One of ________ doctors in America will visit our hospital and give us a report.