Can and Could in English

When I was baby, I can/could ride in a baby stroller.

• can
• could

I don't understand the information very well, I can/can't finish the homework.

• can
• can't

I'm very good at art. I can/can't help you with your art project.

• can
• can't

When I was a baby, I could/couldn't write.

• could
• couldn't

I can't/couldn't finish reading the book yesterday because I didn't have time.

• can't
• couldn't

I can/can't come to your party because I have too much homework.

• can
• can't

I can/can't come to your party because I'm free after school! I don't have anything to do.

• can
• can't

Last year I could/couldn't speak English very well, but now I can!

• could 
• couldn't

Now Aaron can/could read.

• can
• could

When Tom was 16, he was a fast runner. He _____ run 200 meters in 22 seconds.

• can

• can't

• could

• couldn't