問題詳情

48. The thief was trying to break into the house, ________ a big guard dog behindhim.
(A) didn’t notice
(B) not noticing
(C) hadn’t noticed
(D) wasn’t noticed

參考答案

答案：B
難度：簡單0.75
統計：A(1),B(3),C(0),D(0),E(0)