after a w(),she began to walk

问题描述:

after a w(),she began to walk
could you help me with my english
A yes,i could B no problem

while
After a while,she began to walk.过了一会儿,她走了.
希望能帮上忙哦!could you help me with my englishA yes,i could B no problem答案是B因为could在这里有表示婉转的请求,所以不用Yes,I could 或者No,I couldn't.