It seems oil leaves from this pipe for some time．We’11 have to take th-考呗网

单选题It seems oil leaves from this pipe for some time．We’11 have to take the machine apart to put it right．

本句意为：油管漏油好像有一段时间了，我们必须拆开机器排除故障。题干第2句表示将要采取的措施，意味着第l句话“漏油”(1eak)的动作发生在过去某一时间，并且持续到现在为止仍在继续，因此第1句话应用现在完成时或现在完成进行时。因此D为答案。

1All the following terms that appear in Paragraph 2 refer roughly to the same as “tax—free shopping” EXCEPT__________．

2When he was told that he scored 58 in the final examination，he was in a comfort of remorse．

3According to the passage，it seems that one can have more sales tax benefits in__________．