The essay you wrote is excellent, which a rapid improvement on your recent work.
| A．illustrates | B．explains | C．represents | D．communicates |
30. The coal we use today should _____ plants and trees.
| A．begin with | B．start with | C．commence as | D．originate as |
29. That's all for the party. Let's _____.
| A．fall asleep | B．go to sleep | C．go to bed | D．be asleep |
28. They ____ friends since they met in Shanghai ten years ago.
| A．have become | B．have turned | C．have been | D．have grown |
27. When he heard the news, his heart ______ very fast.
| A．stroke | B．beat | C．knocked | D．Jumped |
26. The old woman could not _____ the terrible noise, and she had to close the door and windows.
| A．bear | B．accept | C．receive | D．Hold |