People try to avoid public transportation delays by using their own cars, and this further problems.
A. in short
B. in case
C. in doubt
D. in turn
网友回答
A. in short
B. in case
C. in doubt
(答案→)D. in turn
解析：:in turn 意为“依次,轮流”。根据所提供的情景“People try to avoid public transportation delays by using their own cars”可判断出会增加进一步的问题。in short 意为“简而言之”；in case 意为“万一”；in doubt意为“不能肯定的,可怀疑的”。