---Have you seen Bill recently? --- Oh, no! Nobody knows ______ he is! Everyone is looking for him.
--- A nice day today, isn’t it? --- Yes. ________ go for a picnic and relax?
In my ideal school, there is a big library ______lots of _____ books.
The number of the football players _____12. A number of them _____ my friends.
--- Mum, could you buy me a dress like this? --- OK, we can buy ______ one than this, but _______ this.
Of the two sisters, Lucy is ______ one, and she is also the one who loves to be quiet.