—What are those?— are their books.A.That B.They’re C.They
---When did Mr Green arrive in London?---He arrived there the evening of December 6th.
There are ______ students in the our school.
---How ____ is it from here Ningbo to Xi’an?---It’s about two ____ flight.
-- Would you like some ____?---No, thank you. I am not hungry at all.
____Greens are going to the park. Why don’t we go for ______ walk?