问题
选择题
18．--- Tom has a lot of parties recently.
---Yes, that may ____ why he didn’t do well in the test.
A, sum up B. add up to C. account for D. make sense of
答案
答案：C
考查短语辨析。sum up 总结，add up to 加起来，account for 解释，make sense of 明白什么的意思，句意：汤姆最近参加了许多聚会。是的，那样可能解释了为什么他在考试中没有做好。所以选C。