单选题 In those days even bicycles were very dear and hard to ______, and coupons were issued for them.

【正确答案】 B、C

【答案解析】[译文] 在那些日子里，甚至连自行车都很贵，而且很难弄到，要凭票购买。
根据and coupons were issued for them可以推断，要得到自行车很难，文中come by有“获得，得到”的意思，故符合题意。