【正文】
scribes his success to skill and hard work.The soldiers kept their heads down behind the bulwark.She looked around this way and that in a dubious manner.Selfishness was a facet of his character that we seldom saw before.For the first time he had to pay heed to his appearance, and in fact he became very welldressed from then on.The boys huddled together under the rock to keep warm.The old man mumbled something to me, but I could not understand him.This ruined bridge is a relic of the Korean War in 1950.Automobile exhaust fumes are one of the major causes of smog.The thirsty wayfarer was glad to find a fresh spring near the road.He always speaks with his mouth full of food, it is his wont.Four people were huddled under one umbrella to avoid the sudden shower.I‘m feeling better than yesterday, but it is dubious that I can go to school tomorrow.No one knows who wrote that play, but it is usually ascribed to Cyril Tourneur.We believe that a free press and free speech are bulwarks of democracy.Take heed of what I say, or you will fail in the final examination.