1. I was in this class a month ago, and I am in this class for now
2. I knew my English teacher since September and I know her now.
3. Our teacher was sick since a week ago, and he is still sick now.
4. My parents live in Istanbul, they've been there since June
5. Lara wanted a dog since two years ago, and she wants one now.
This homework is confusing. Can you remove or replace some of the words? Or do you have to just put in the word anywhere it could fit? Because if I hadn't replaced some words these sentences would be very grammatically fried. They're still not that great because I'm not exactly sure of the rules of the homework.