问题
选择题
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
答案
答案：A
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。