Allofusfound
问题详情：
All of us found ____ difficult to work out the maths problem.
A. it B. that C. which D. what
【回答】
A
知识点：指示代词
题型：选择题
问题详情：
All of us found ____ difficult to work out the maths problem.
A. it B. that C. which D. what
【回答】
A
知识点：指示代词
题型：选择题
