Even if they are on sale, these refrigerators are equal in price to, if not more expensive than, _____ at the other store.

I visite Zhangjiajie during the summer vacation .It’s a pleasant trip, ____I’ll never forget. 

He is not full . He wants to eat _____ piece of bread .

I read about it in some book or other, does it matter _____ it was? 

—Oh, ________ air is so bad. Shall I open the windows to let in ________ fresh air?—Ok, thank you.