--- You don't know what great difficulty I had _____ to get the two tickets.--- But the film is really worth_______ twice.
He couldn't _________an answer when I asked him why he was late.
--Could I________ your CD player, please? --Sorry . _________is broken.
--Do you want one way ________ round-trip? --Round -trip. We'll return __________December 8th.
--Surfing first started on the islands of Hawaii, didn't it? --Yes, but now it ______ by people all over the world.
--Could you tell us __________ ? --About two weeks.