The teacher took the _____ to learn the students' names on the f

The teacher took the _____ to learn the students' names on the first day of school.
A、difficulty
B、trouble
C、problem
D、hardship
【正确答案】：B
【题目解析】：译文：在开学的第一天，老师感到记住学生们的名字有点困难。本题考查固定搭配。take the trouble to do sth.表示“在方面有困难”。答案为B。