问题补充：
单选题Indeed,thankstothegoodideasoflotsofpeople,likethecyclingfansinthe1960s,manypeoplearoundtheworld______thecitycentrestreetswithoutcarsformanyyears.A.have enjoyedB.enjoyedC.have been enjoyingD.have been enjoyed
答案：
C
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时间：2019-06-15 09:21:55
单选题Indeed,thankstothegoodideasoflotsofpeople,likethecyclingfansinthe1960s,manypeoplearoundtheworld______thecitycentrestreetswithoutcarsformanyyears.A.have enjoyedB.enjoyedC.have been enjoyingD.have been enjoyed
C
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