阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。
Charlie Chaplin was born in a poor family of music hall performers in 1889. ____ astonished us was that Charlie ____(teach) to sing as soon as he could speak and dance as soon as he could walk. Such training was common in acting families at that time, ____ (especial) when the family income was often uncertain. Unfortunately his father died, leaving the family even worse off. By his teens, Charlie had become one of the most popular child actors in England. No one was ever bored ____(watch) him—his subtle acting made everything ____(entertain). As time went by, he began making films. His film character, the little tramp, was a social ____(fail) but was loved for his optimism and determination ____(overcome) all difficulties.
Charlie wrote, directed and produced the films he ____(star) in. In 1972 he was given ____special Oscar for his outstanding work. He lived in England and the USA but spent his last years in Switzerland, ____ he was buried in 1977. He is loved and remembered as a great actor who could inspire people with great confidence.
H2（g）+CO2（g）
H>0当反应达平衡时，测得容器中各物质均 为n mol，欲使H2的平衡浓度增大一倍，在其它条件不变时，下列措施可采用的是（ ）
