After retirement, Mr. Smith ______ painting, which he had always loved but had not had time for.
Your father likes to play golf. He’s really enthusiastic ________ it.
— Why don’t you want to travel abroad? — Because it becomes ________ expensive ________ before.
The ________ moment they had looked forward to ________ finally.
Who else except a millionaire could ________ to use such an expensive car?
Jack ______ the bus as soon as it stopped; and then to his joy he met an old friend of his on that bus.