I’ll never forget the days ______ we spent together in the country.
— Oh, dear! There isn’t enough _____ for us in the lift. — No hurry. Let’s wait for the next.
Do you know the girl _______is singing in the classroom?
—I don’t know _______ now. —She is much better today.
She has never been to Hong Kong,______?
Yao Ming works hard on his English and ________