问题
选择题
- Have you finished the maths problem?
- Not yet, because I find it difficult ______.[ ]
A. in working out
B. working out
C. to work it out
D. to work out
答案
答案：D
搜题请搜索小程序“爱下问搜题”
- Have you finished the maths problem?
- Not yet, because I find it difficult ______.[ ]
A. in working out
B. working out
C. to work it out
D. to work out
答案：D