阅读理解。 A student is learning to speak British English. He wonders, 'Can I communicate with Americans? Can they understand me?' Leaners of English often ask, 'What are the differences between British English and American English? How important are these differences?' Do you know any differences between British English and American English? Certainly, there are some differences between British English and American English. There are a few differences in grammar. For example, speaker of British English say 'in hospital' and 'Have you a pen?' While Americans say 'in the hospital' and 'Do you have a pen?' Pronunciation is sometimes different. Americans usually sound the 'r' in the words like 'bird' and 'hurt'. Some speakers of British English don't sound the 'r' in these words. There are differences between British English and American English in spelling and vocabulary. For example, 'colour' and 'honour' are British. But 'color' and 'honor' are American. These are differences in grammar, pronunciation, spelling, and vocabulary are not important, however. For the most part, British English and American English are the same lauguage. 1. The importance of the differences between British English and American English is _____. [     ] A. great B. quite great C. fairly great D. not great at all 2. _____ British English and American English are the same language. [     ] A. Nearly B. Partly C. On the Whole D. For the most people 3. _____ sound the 'r' in the words. [     ] A. British English speakers B. Americans C. Both British English speakers and Americans D. Most Americans 4. How many differences are there between British English and American English? [     ] A. Grammer. B. Pronunciation. C. Spelling and vocabulary. D. A, B and C 5. Which sentence best expresses the main idea of this passage? [     ] A. Speaker of British English and American English use the same language. B. British English and American English are two kinds of languages. C. There are some difference between British English and American English. D. The writer stresses (强调) the differences between British English and American English.