She ___ swim very well when she was younger.
could
I ___ go to the meeting yesterday because I was sick.
couldn't
We ___ bring our own food because they provided everything.
didn't have to
We ___ stay up late to finish the work last night.
had to
He ___ understand the instructions, so I had to explain it to him again.
couldn't
When I was a child, I ___ climb trees really easily.
could
She ___ attend the meeting because she was on vacation.
couldn't
They ___ wear uniforms to school when they were younger.
had to
We ___ take the train, but we decided to drive instead.
could
We ___ finish all the work today; the deadline is next week.
don't have to
I ___ sleep well last night because it was too noisy.
couldn't
You ___ bring any documents; they’re all electronic now.
don't have to
She ___ drive yet because she’s still learning.
can't
