阅读理解。 Once there were two brothers who were twins. They looked the same. They both had the same dark brown hair, blue eyes and beautiful te eth. They were both 5 feet 10 inches tall and both weighed 150 pouds. They not only looked alike but also sounded alike on the telephone. Not even their family could tell the difference. They dressed alike, listened to the same music, and read the asme books. When they were twenty-tree, they both got married and a year later both had sons. The years went by and as they began to grow old, they both wore glasses and they both became. bald. Then one day, one of the brothers got sick and died. A few day s later a man stopped the other twin on the str eet. 'Excuse me for asking,' he said, 'but was it you or your brother who died?' 1. It was not easy to tell the two men from each other because _____. A. they were brothers B. they were handsome C. they were the same age D. they were twins 2. The twin brothers _____. A. had different coloured hair B. were not so tall as each other C. looked very much alike D. wore different clothes 3. 'They both became bald' means _____. A. they became old B. they had sons C. they had little hair D. they got sick 4. The only difference between the twins was _____. A. one got sick and died first B. one was shorter than the other C. one got married and had a son D. one was bald and the other wasn't 5. The man stopped the other twin on the street because _____. A. he wanted to talk with him B. he didn't know which of them died C. he wanted to make friend s with him D. he was surprised to see him on the street.