Question

4 Complete the sentences with the
affirmative or negative form of could,
can and will be able to.
1. l hope one day doctors ___cure all diseases.
2. When I was young, I ____ speak English, but l ___ now.
3. l ___ speak German because I've never had
lessons.
4. l ___ go to school yesterday because I was ill.
5. My brother is very clever. He ___ read when hewas four years old.
6. No, we ___ transplant brains by 2020.​
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Answer 1

1. l hope one day doctors will be able to cure all diseases.

2. When I was young, I couldn't speak English, but l can now.

3. l can't speak German because I've never had

lessons.

4. l couldn't go to school yesterday because I was ill.

5. My brother is very clever. He could read when hewas four years old.

6. No, we won't be able to transplant brains by 2020.