For each group, find a word that can be added to each member to make another word or phrase. For example, given DRAW, HOLD, IN, FORTH, the word WITH can be combined with each of them to make a new word or phrase.
-1. work, rag, back, white
-2. knife, card, water, side
-3. drum, cold, head, wool
-4. master, work, background, over
-5. bird, stem, child, storm
-6. lock, claw, head, drill
-7. fish, paper, woods, beat
-8. fish, bread, shift, man
-9. ground, slip, charge, girl
-10. market, road, tube, screen
Did you ever stop to think...and then forget to start again!