______ label to each of the trees, with detailed introduction of their features, and visitors will know more about them and how to protect them.
—— How long has the bookshop been in business? —— ______1987.
In Hangzhou Mr. Black was so struck____the beauty of nature that he stayed___another night.
He is running____the wind towards the station_____ Tom running ________the right.
I don’t think you can work out the maths problem____her help.
My uncle lives____116 Changhe Street. His room is ____the sixth floor.