Question

x51. He often played the piano at night. He used to
52. We don't see our grandparents very often because they live so far away.
If......
53. What a pity! Our teacher isn't here at the moment.
I wish......
K54. Did your father watch a football match on TV last night?
→Your father.
55. Spending the weekend in the countryside is very wonderful.
→ It's

Answer 1

51. He used to play the piano at night.

52. they -> we

If we didn't live so far away, we would see our grandparents very often.

53. I wish our teacher was here at the moment.

54. Your father watched a football match on TV last night, didn't he?

55. It's very wonderful to spend the weekend in the countryside.