--Excuse me, can I have this seat, please?--I’m sorry, but it’s_______.
We are going to have a parents’ meeting ________ this Sunday afternoon
She often goes to work _______________.
There is _______ 11-meter-long bridge over ______ river.
— I am going to Millie’s birthday party this evening, Mum.— ________. And remember to come back before 10.00 p.m.
Hangzhou is famous ________ West Lake. Many _______ of visitors come to Hangzhou during the May Day.