Mr. White was the owner of a hotel in the town. One weekend all of the hotels were full because a large meeting was being held in the town. On Saturday night, three men came into the hotel and asked for rooms. Mr. White explained(解释) that there were no rooms for them. The men didn't want to go because they had no place to stay.

　　Mr. White wanted to help them. He remembered that Room 418, a very small room, was empty. He asked them if they would share(分享) a room. The three men said that they would.

　　Mr. White told them that the room would be $10, and then they went up to their room.

　　Mr. White soon began to feel sorry.“Thirty dollars is too much for the small room.”He called his assistant over and said,“Here is $5. Give it to the men in Room 418. They paid too much for the room.”

　　The assistant took the money. While he was on his way to Room 418, he thought,“How can three men divide(分) $5? I'll give each of them only $1, and I'll keep $2. They'll be happy to get something back. I'll make a little money and Mr. White will never know.”So, he returned $1 to each man.

　　Each man had first paid $10. After the assistant gave $1 back to him, each one had actually (实际) paid only $9. $9×3=$27. The assistant kept $2. $27＋$2=$29. Where is the missing dollar?

1．The meeting was held on ________.

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2．If there had been empty rooms in the hotel, ________.

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A．each of them would have had a room

B．the dollar would not have been missing

C．they would still have stayed together in a room

D．they would have had a larger room

3．We can know that ________.

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A．the money was lost

B．the assistant kept more than $2

C．there was a mistake in calculating(计算)

D．the missing dollar was nowhere to be found

4．Which of the following is not true?

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A．Mr. White actually took $25 for the small room.

B．The assistant kept no more than $2.

C．The three men paid $27, including(包括) the two dollars that the assistant kept.

D．No one could find out where the missing dollar was.

5．The last sentence shows that ________.

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A．Mr. White found one dollar missing

B．The assistant wondered where the missing dollar was

C．The writer was not good at maths and asked the readers a foolish question

D．The writer put a puzzling question to the reader

　　One afternoon, he received a telephone call: his only son was knocked down by a car in Paris. The young man’s leg was badly hurt and had to be put in the hospital. Mrs. White was worried and asked her husband to go there with her to see him at once. The scientist was busy with his work, so he made quite a few excuses, but it only made her angry. At last he had to leave for Paris with her at once. Their flight number was BA347. They arrived at the hospital in the evening. A friend of their son’s asked,“When did you start, Mr. White?”“At half past five,”answered Mr. White.“Today or yesterday?”What’s the date today?”“July 3.”“Oh, I remember,”called out Mr. White,“We started this afternoon.”“How did you come here, by air or by sea?”“I don’t know,”answered Mr. White,“You’d better ask my wife. She always arranges these things.”

A．her husband wouldn’t go to see their son

B．her husband was hit by a car

C．her husband didn’t love her

A．he was asleep

B．he was thinking about his work

C．he was worried about his son