key有钥匙;（打字机等的）键;关键，线索，秘诀;（音乐的）调;等意思，那么你知道key的过去式是什么吗?今天一起来学习一下key的过去式以及key的用法和例句，希望对大家的学习有所帮助!
key的过去式及其它时态
key的过去式:keyed
key的复数:keys
key过去分词:keyed
key现在分词:keying
key第三人称单数:keys
key的用法和例句
1、Inserting the key in the lock, he turned it and pulled the door open.
他把钥匙插进锁里转了一下,拉开了门.
2、At these conventions, executives fraternized with the key personnel of other banks.
在这些集会上，主管们和其他银行的重要人员友善往来。
3、I looked everywhere for my lost key.
我到处寻找我丢失的钥匙.
4、Oh, no! I've forgotten my key again.
真该死! 我又忘了带钥匙了.
5、He threw the key at me.
他把钥匙丢给我.
6、Two key witnesses at her trial committed perjury.
在对她的庭审中有两名主要证人犯了伪证罪.
7、Scientists provided the key to understanding the genetic code that determines every bodily feature.
科学家们找到了破解决定各种身体特征的遗传密码的密钥。
8、A key task is to get pupils to perceive for themselves the relationship between success and effort.
关键任务是让学生们自己认识到成功和努力之间的关系。
9、Gooch last night pointed to their bowling as the key to World Cup success.
古奇昨晚指出，他们的投球是在世界杯上取得成功的关键。
10、This piece changes key many times.
这首曲子有多处变调.
