A: Alice, you clean the house,         ?
B: But I did it yesterday.

—Where did you get to know her?
—It was on the farm______ we worked.

Have you ever noticed the house, ________ windows are always closed?

Even on a cold day，he prefers ________out to play football ________ at home.

It was in 1969 ______ two Americans went to the moon by spaceship.

There is little doubt in your mind that he is innocent,             ? (2012江苏)

----These days many fan-boys are queuing for the latest iPhone 5.
----Yes, but           is still some doubt           it is really better than iPhone 4s.

So hard ______ that we had to wait another day.