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Exercise : Choose a word from the list and use its appropriate form to fill in the blanks: clean clear mop wipe scrub 1. I _____my shoes on the mat before I came in. 2. The mayor is determined to____ up the city. 3. It took several hours to ___ the road after the accident. 4. I have to____ the kitchen floor at least once a day. 5. Although she ____ the old pot thoroughly, she could not make it look completely clean.