---Can I look round the rooms before I decide which room I'd like to stay in?

---Of course．________, madam．

---What ________ it be?

---It ________ be a car, for it is not moving. It ________ be a house.

---How did you find the lecture given by Professor White?

---I thoroughly enjoyed it．I had never heard a ________ lecture．

---Why isn’t the recorder ready yet?

---I’m sorry．It ________ in the shop．

--Could I ask you a rather personal question?

--________.

--It was careless of you to have left your clothes outside all night.

--My God!________.

---It's time to stop working.

---Let's ________ the tools and ________ for the night in the woods.

---Will you join us in going for a picnic in the country?

---_______When shall we go?

— Would you like ________, sir？

— Well, ________ for my wife and a cup of tea with milk and sugar for me, please．

---He seems to be a doctor.

---________. It is 10 years since he became a doctor.