问题: When did you learn how to type on a keyboard?

I learned how to type on a keyboard in primary school. We had computer classes where the teacher showed us how to use the keyboard, and I also played some typing games to get better.

I first learned to type on a keyboard back in primary school. We had computer classes where we practiced basic typing skills, and I also picked it up naturally by using the computer for homework and playing games. Typing games really helped me improve my speed.

1. 过去简单时态：答案使用了过去简单时态（"learned," "had," "practiced," "picked up"）来描述过去的经历，适合该问题。 2. 关系从句的使用："where we practiced basic typing skills" 是一个关系从句，补充说明了计算机课程的内容。

I started learning to type in high school because I had to write essays and do assignments on the computer. I also chatted with friends online, which made me type faster.

I actually learned how to type properly in high school. I needed to type essays and assignments, so I had to get used to it. Plus, chatting with friends on social media encouraged me to type faster. I remember practicing a lot on my family's computer at home.

1. 一般过去时：答案使用了一般过去时（“learned”，“needed”，“encouraged”，“remembered”）来描述过去的经历，这对于问题来说是合适的。 2. 不定式和动名词的使用：“to type essays”，“to get used to it”和“practicing a lot”展示了丰富的语法结构，包括不定式和动名词。

I only learned to type recently, when I started my first job. I had to use a computer every day, so I took an online course to get better at typing.

I learned how to type on a keyboard quite recently, actually. When I started my first job, it became necessary for work, so I took an online typing course to improve my skills. I didn't have much access to computers when I was younger, so I had to catch up as an adult.

1. 一般过去时：答案使用了一般过去时（“I learned”，“I took”，“I didn't have”）来描述过去的事件和经历，这对于该问题是合适的。 2. 因果关系：使用“so”将打字技能的需求与参加在线课程联系起来，展示了清晰表达因果关系的能力。 3. 对比：短语“I didn't have much access... so I had to catch up as an adult”展示了句子结构中对比和结果的运用。