Choose the correct answer

He ______ play the piano well when he was seven.
1. can
2. could
3. was able to
‘I`ve just taken a loaf from the oven.’ ‘ Oh that`s why I ______feel the
smell of bread when I came.’
1. can
2. could
3. was able to
The children _______ write the test because it was easy.
1. can
2. could
3. were able to
I hope I`ll ______ to go on holiday with my friends.
1. can
2. could
3. be able to