He wanted to pass the exam and stayed up very late，while this created further problems.
A. in turn
B. in case
C. in doubt
D. in short
网友回答
(答案→)A. in turn
B. in case
C. in doubt
D. in short
解析：
考查介词短语的辨析。in turn 轮流，反过来，符合句意。in case假使，以防万一；in doubt 不确定，拿不准；in short总之，简言之。