(A) Mr. and Mrs. Tanaka went to the United States for holiday. They enjoyed themselves very much, but the thing that troubled them most was tipping. They did not know anything about it. It became a problem as soon as they arrived in the United States and remained a problem until the last day of their stay. They gave tips to porters, taxi-drivers, bell boys, waiters and so on. There was not a day when they did not tip to someone. At first they felt they were forced to pay money for nothing. But one of their friends told them that those who received tips depend on them, because their employers take their tips into consideration and as a result pay lower wages. They understood the explanation but it still took them a while to decide how much they should tip. 46. In Mr. Tanaka’s native country, people ________ a person for service given. A. used tip B. usually tipped C. seldom tipped D. never tipped 47. Mr. and Mrs. Tanaka ________ to tipping _____ in the US . A. could not get used, at first B. could not be used, during their whole stay C. soon got used, shortly after their arrival D. soon got used, during their last stay 48. At first they felt_________. A. as if they were robbed of the money while tipped B. it necessary to do a little tipping in a foreign country C. they had tipped too much D. they were forced to pay for things they didn’t need 49. In the United States , if a waiter is tipped regularly, his employer will pay him _______ ought to. A. more than B. just the same as C. less than D. as much as 50. Mr. and Mrs. Tanaka thought their friend’s explanation ________ from then on. A. reasonable, and gave tips without hesitation B. unreasonable, but had to give tips with hesitation C. reasonable, but had to give tips with hesitation D. unreasonable, but had to give tips with pleasure