Can I say,
(A) They set off at 9 o'clock in John's father's car.
They set off at 9 o'clock in the morning by car.
(b) They held a small concert at the hall.
(c) The old folks were smiles and gave them a big applause / ...and gave an
applause to them.
(d) When they arrived, they were greeted by the superintendent. All the old
folks welcomed them.
(f) The old folks felt / were very delighted. This was a day full of meaningful.
(g) They brought some mandarin oranges to / for them.