YOU/ SHOULD/ TAKE OFF/ YOUR SHOES / BEFORE/ / ENTER/ A HOUSE /. A....

38. You/ should/ take off/ your shoes / before/ / enter/ a house /. A. You should take off your shoes before enter a house. B. You should take off your shoes before entering a house. C. You should enter a house before taking off your shoes. D. You should enter a house before take off your shoes.