The number of people present at the meeting _________ about 1000 , a large number of whom _______ experts from abroad.
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.