问题描述:
i need one more stamp before my collection _____.
A. has been complected B is complected
为什么选B不选A?
对比:
I’ll wait until he has written his letter.我愿等到他把信写完.
When you have rested, I’ll show you the garden.等你休息好之后,我领你看我们的花园.
谢谢
A. has been complected B is complected
为什么选B不选A?
对比:
I’ll wait until he has written his letter.我愿等到他把信写完.
When you have rested, I’ll show you the garden.等你休息好之后,我领你看我们的花园.
谢谢
问题解答:
我来补答展开全文阅读