Do you have a computer?

你有电脑吗？

He is using a computer.

他在用电脑。

We have got a computer.

我们有一台电脑。

Sasha has got a computer.

莎莎有一台电脑。

When do you use a computer?

你什么时候使用电脑？

We have a computer at home.

我们家有一台电脑。

Jim doesn't use a computer.

吉姆不用电脑。

I can buy a computer online.

我可以在网上买电脑。

I've got a computer at home.

我家里有一台电脑。

He is a computer programmer.

他是计算机程序员。