16. is <span>C. Don't imagine you can't do as you wish.
17. is </span><span>A. However
18. is </span><span>D. Tina arrived at work earlier than usual.
19. is </span><span>B. A good connection between two paragraphs is an implied transition.
20. is </span><span>C. The snake raised up its head and struck</span>
