28. They ____ friends since they met in Shanghai ten years ago.

27. When he heard the news, his heart ______ very fast.

26. The old woman could not _____ the terrible noise, and she had to close the door and windows.

25. --- We could have walked to the station. It was so near.
--- Yes. A taxi ____ at all necessary.

24. The valley was _____ in sunlight, and the children were singing and jumping with joy

23. Everyone should remember it is very important to _____ the balance of nature toady.

22. She always ____ her opinion ____ facts.

21. Every morning, the fish mongers stood there ______ with the fishermen for fishes.

20. When Jack arrived, he learned Mary ____ for almost an hour.

19. They didn't _____ the wedding because of a heavy rain.