It seems oil( )from this pipe for some time.We'll have to take the machine apart to put itright.
考试：MBA考试
科目：英语（在线考试）
问题：
A：had leaked
B：is leaking
C：leaked
D：has been leaking
答案：
解析：
相关标签：
It seems oil( )from this pipe for some time.We'll have to take the machine apart to put itright.
VIP会员可以免费下载题库
推荐度：
点击下载文档文档为doc格式
上一篇：When he arrived, he found( )the aged and the sick at home.
下一篇：I had just started back for the house to change my clothes( )I heard voices.
