Mike is a student at a famous university, _______ for a doctor degree.
Mary said that she ___________ London.
I don’t know ____________.
-----Would you mind lending me your new car? ----- __________.
-----Can I speak to Mr.Wang? -----Sorry, he’ s out.Can I _____ a message?
-----Have you _____ the invitation to the party? -----Yes, I have.And I’ve ______ it.