When winter(冬天) comes, the days get_______.
do you write to your pen-friend?— Once a week.
It was late _______the night of october20,1999.
“We _____ go to see a film. We'll go to see a new film _____ next week.
There’s______ ink in my pen. Could you give me some?
He will come to understand your efforts sooner or later. It’s just a matter of _____.