---- You don't know what great difficulty I had _____ to get the two tickets.---- But the film is really worth_______ twice.
_______ beef do we need to buy?
-- Are the books ________? -- No, they belong to ________.
How do you read 15,847?
There is a wooden bridge ______the river _______ my house.
-- _____ I ask you a question, Mr. Wang?-- Yes, you _______.