注意：此页面搜索的是所有试题
题目内容
（国家开放大学管理英语3）
Then the situation _____________ worse by human error because of the lack of proper training.1
选择一项：
A.
was
B.
was made
C.
has became
选择一项：
A.
was
B.
was made
C.
has became
参考答案
