The price of agriculture products _______ since the beginning of last year.

While every possible means __________ to prevent the river pollution, the river in my hometown has still not been restored to its past beauty. 

Because the shop _______, the T-shirts are sold at half price.

Flight 3010______,I must be off now or I’ll be late.

---Harry, we want to know your view about the reform being carried out in our school.---OK. I ________ to that.