Ответ
1)I can ……………………………….. I can write and read.
2)I can’t ……………………………… I can’t fly.
3)I could …………………………….. I could eat it yesterday.
4)I culdn’t …………………………… I couldn’t visit my grandparents yesterday.
5)I was able to …………………….. I was able to work.
6)I’ll be able to ……………………. I’ll be able to swim.