know
- I didn’t know ______.
- Do you know how long ________? —-I’m sorry I don’t know.
- Do you know_____ ? Sorry,I’ve no idea.
- 一Excuse me. Do you know___________?一Sorry,I don’t know．
- Do you know ___________?—To meet her friends from America.
- Do you know _____?—Sorry, I don’t know.
- As we know, you won’t go back to the USA since you have established a research center here．But how long _____ in America? —– For almost
- Do you know Jim quarreled with his mother? — I don’t know. _____.
- Do you know our town at all?—- No, this ______ the first time I ______ here.
- Do you know our town well?— No, this is the first time I _______ here.