When I opened the door, I found my father sitting in his chair, completely _______ in the humorous stories he was reading.
_______ is important for us to learn English well.
My father used _______in front of his house and he got used to _______like that.
Rather than _______on a crowded bus, he always prefers _______a bicycle.
Mr. White, with his family, _______Taiwan by plane which_______ at 8:30 next morning according to the timetable.
Preparing the final test paper _______ his whole afternoon.