—Would you mind opening the window?—_______ Please do.A.Certainly notB. You’d better notC. I’m afraid so
----Don’t forget to give my best wishes to your uncle.----_________.
----Whose book is this?----It _______ our geography teacher’s. You see, his name is on it.
---- Mom , I was the first to reach the top of the mountain .--- Good job, Jack! I 'm ______ of you.
There is ______ American boy in our class and ______ boy can speak good Chinese .
—Could I have a rest, Sir.? —________, we have little time left.