风语者1777
春芽
共回答了22个问题采纳率:95.5% 举报
He found _______ very diffcult_______ the Maths problems.A that;to work out B this; working out c him; work out Dit ; to work out
选D
这边是it作形式宾语,代替后面的【to work out the maths problem】
this that没有这种用法
【find it +adj to do sth】固定用法
1年前
10