—Oh, you look so beautiful in the red shirt. It’s in style.—Thank you. I bought it in Huangshang Supermarket last Saturday.

---Why do you keep the windows open on such a cold day? ---There are so many students here, so we want to keep the air nice and __.

The ______ story made us very ______ . 

________spending our vacation in a noisy crowded city,why not try hiking in the country? 

—I feel blue these days.—Why? What makes you so _________? Cheer up, please.