Question

なつき

(9)の問題で何故2が答えになるのか、そして何故他の3つの答えが不正解なのかできるだけ詳細に文法事項を含めて教えて欲しいです。

(9)( ) with last year, statistics show a 15% reduction in burglary in this area.
①Comparing 2 Compared 3 Having compared ④Compare
(10) ( ) Mariko studied hard for the final examination, she could not pass it.