—Jim, do you know the reason _____ Bob kept silent during the discussion?—I guess he was thinking about his sick dog. It might be dying.
_____ of the workers in this factory is about five hundred. ______ of them are women.
---A latest magazine, please. --- Only one left. Would you like to have ________?
Though I ______ the phone number many times, the foreigner still couldn’t write it down.
I really enjoyed your lecture, ______ there were some parts I didn’t quite understand.
-- I'm hungry, is there any bread in the fridge? -- ______,but we have cakes. Would you like to have one?