Upon reading the notice all the staff of the company stood there , looking at each other.
29.The police tried to get some clues from the suspect, but he remained________
27.In hot weather, an old tyre can break again easily _____it’s mended.
26.PE will be part of the high school graduation examinations.______,you will have to be strong and healthy to graduate.
25.If you sleep short of 7 hours, you are three times _______ to catch a cold.
24.As most of their houses were badly damaged after the earthquake, many people had to be_____in a stadium.