题目

A mouse was looking through a crack in the wall one day and saw the farmer and his wife opening a package. He was curious about what food the package may 41 . He was shocked to 42 that it was a mousetrap. The mouse ran to the farmyard, 43 everyone, There is a mousetrap in the house! The chicken 44 his head, saying, Mr. Mouse, I can tell you this trap is a great concern for you, but I can’t be 45 with it. The mouse turned to the pig. I am so 46 , Mr. Mouse, but the trap is no concern of mine, either said the pig. The mouse then turned to the bull. It sounds like you have a 47As soon as he got to the office, he ___ the students’ papers.A. got down to correct B. got down to correcting C. set down to correcting D. sit down to correcting