一、单句语法填空
1.I was woken by the sound of a       (string) instrument at midnight. 
答案:stringed
2.A terrible earthquake happened in that country last month,      (cause) thousands of deaths. 
答案:causing
3.A dancer must throw herself heart      soul into every performance. 
答案:and
4.Although he was old,he was always full       energy. 
答案:of
5.There is some       (classic) music playing in the background. 
答案:classical