In science fiction we read of flying saucers travel through _____ space, so people want to have ______ better knowledge of the universe.

— Did you see _________ jacket on the playground just now? — Is it _________ new one and very cool?

I saw ___ boy and ___ old woman sitting at the table.I thought ___ old woman must be ___ boy’s grandma.

A girl became a writer at ___ age of 12,_____ age when many children are still in the primary school.

What _______ bad memory I have! You see, I forgot to take _______ key.