問題詳情

19.There are some health problems that, when ____in time, can become bagger ones later on.
(A)not treated
(B),not being treated
(C)not to be treated
(D)not having been treated

參考答案

答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)