問題詳情

5. As you look ahead, however, we believe it's important to look at lessons learned, mistakes that ______ from the past business cycle in order to avoid these pitfalls tomorrow.
(A) ought to be avoided
(B) must have avoided
(C) will be avoided
(D) could have been avoided

參考答案

答案：D

統計：A:9,B:1,C:2,D:10,E:0

難度：計算中