-- I’m hungry, ls there any bread in the fridge? -- ______but we have cakes. Would you like to have one?
Ask John ______ here at 7 pm tomorrow.
The air in Beijing is getting much ______ now than a few years ago.
He has two pets. One is a dog, ______ is a cat.
— Will you stay for lunch?— Sorry, I ______. My brother is coming to see me.
I phoned you at six yesterday evening, ______ nobody answered.