Must I return the book this week? No, you______. You can ______ it for 20 days.
There’re many _______ on the big tree.
________ nice flowers ! Where did you buy them?
He’s given an important report on the work of the government,________?
—Sandy,can you tell me ________? —Sorry,I’ve no idea.
I don’t know the teacher ________ is talking with Miss Wang.