1.My sister went to a remote village to participate in the (志愿的) activity.
2.University professors both teach and (从事)research.
3.The girl is fond of (积累)new words in her English study.
4.After the failure of the operation, the doctor felt guilty and (辞职).
5.Bearing a heavy (负担), she has to work hard to bring up her children.
6.Minor died in 1920,seven years before the first (版本)of the Oxford English Dictionary was completed.
7.Though warned again and again, the young man still drove after drinking,leading to his being (罚款).
8.Several words were (删除)by him from the text.
9.He remained single all his life (根据原则).
10.Lost in thought,he almost (撞上)a man who carried a heavy box.
11.Peter is keen to (炫耀)his new car.
12.Nobody knows who it was that (闯入) the house last night and stole the important papers.
13.The judge that murderer (判……死刑)last week.
答案 1.voluntary 2.undertake 3.accumulating 4.resigned
5.burden 6.edition 7.fined 8.deleted 9.on principle
10.knocked into 11.show off 12.broke into 13.sentenced;to death