In this workshop, the output of July was three times           of January.

I’m moving to the countryside because the air there is much fresher than _______ in the city. 

 Even if they are on sale, these air-conditioners are equal in price to , if not more expensive than , ______ , at the other store.

 — Which do you prefer, coke or juice?   —________ is OK. But water will be better if possible.

Alice’s kids are well-behaved, but ______ of her brother are impolite.