2. 外语
  3. It seems oil______from this pipe for some time. We’ll have to take the machine apart to put it right.

It seems oil______from this pipe for some time. We’ll have to take the machine apart to put it right.

admin2015-06-27  39
问题 It seems oil______from this pipe for some time. We’ll have to take the machine apart to put it right.
选项 A、had leaked
B、is leaking
C、leaked
D、has been leaking
答案D
解析 根据句中的时间状语for some time可知，所填空的时态应有两种选择：现在完成时或现在完成进行时，故[D]为答案。
转载请注明原文地址:https://www.kaotiyun.com/show/21XK777K
0

专业英语四级

相关试题推荐
随机试题
最新回复(0)