Read the first sentence, and then complete the second sentence with the same meaning: Computers are used to design new models

Read the first sentence, and then complete the second sentence with the same meaning
1. Computers are used to design new models.
People ...
2. When did you start working in that factory ?
How long .....
3. It isn't necessary for studebnts to wear uniforms today.
Students ...
4. Minh last wrote to his penpal five months ago.
Minh hasn't ...
5. They usually wore jeans when thay were young.
They used ....
6. The teenagers aren't buying that model these days.
That model .....
7. The last time we visited Kuala Lumpur was two years ago.
It's