B) She is not sure of it C)She is sure enough that it takes time for the man to recover D)Th 20. A)Friends B)Doctor and patient C)Salesman and consumer D)Teacher and studentB) She is not sure of it. C) She is sure enough that it takes time for the man to recover. D) The man will recover very soon. 20. A) Friends. B) Doctor and patient. C) Salesman and consumer. D) Teacher and student