在空白处填入1个适当的单词或括号内单词的正确形式。 Different Countries Have Different Kinds of Englishes

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阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 Voyages of people from England play an important part in ___41___(spread) the English language.___42___present, English is frequently spoken as ___43___official or common language in many countries, such as America, Singapore, Malaysia and some African countries, all of which are based on British English. The Englishes spoken in these countries can ____44____ (understand) well by native English speakers. But actually, these Englishes have been changing gradually in accents，spellings, expressions and the usage of vocabulary.
Because of this fact，you can make use of the differences ___45___(tell) which country the foreigners of your block are from. For example, if a boss ____46____(fluent) commands his driver, “Come up straight to my apartment ____47____ elevator and take some gas for my trucks and cabs”, instead of requesting, “Please come to my flat by lift and take some petrol for my ____48____(lorry) and taxis”, you can recognize ____49____(he) American identity while the latter _____50_____(suggest)that he is British.
【答案】41. spreading    
42. At    43. an    
44. be understood    
45. to tell    
46. fluently    
47. by    48. lorries    
49. his    50. suggests
【解析】