I’ll give the prize to _______ finishes the work first.

Lincoln’s mother did ___ many books ___ him.

Evidence has been found through years of study _____ children’s early sleeping problems are likely to continue when they grow up.

The view ____ many scientists hold is ____ too much emission of carbon dioxide is destructive.

– What are your parents doing now?- Well, my father is reading a newspaper_______ my mother is cooking.