单选题：--How come your father can read books in German?--Well, he _

题目内容：

--How come your father can read books in German?
--Well, he _______ on a project with some German engineers for 3 years when he was young.（　　）

参考答案：

答案解析：

The juvenile delinquent was released in __________ of his go

The juvenile delinquent was released in __________ of his good behavior.

分类：英语题型：单选题

The teacher told us nothing __________ difficult if we put our hearts into it.

分类：英语题型：单选题

分类：英语题型：单选题

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。根据以下选项，回答题：请在71处填写答案。

分类：英语题型：单选题

定义： ①自我强化：个人依据强化原理安排自己的活动或生活，每达到一个目标即给予自己一点物质的或精神的酬报，直到最终目标完成。②自我认同：个体依据个人的经历所反思

分类：英语题型：单选题