问题描述:
____please let me know and l will be glad to help you.A because you have trouble to do that
____please let me know and l will be glad to help you.
A because you have trouble to do that
B since you have trouble doing that
____please let me know and l will be glad to help you.
A because you have trouble to do that
B since you have trouble doing that
问题解答:
我来补答展开全文阅读