There are so many kinds of mobile phones here. We can’t decide _____.
--- Did you have a good time at Laura’s birthday party? --- Yes, indeed. It’s several years ________ I enjoyed myself so much.
--- Do you know the boy________ is sitting next to Peter? --- Yes. He is Peter’s friend. They are celebrating his ________ birthday.
--- I think eating more vegetables is good _______ our health.--- Yes, I agree _______ you.
________of the chemical factories in their city _________pouring waste water into the river. It’s too dangerous.
—How much will you be paid? —Tom, I do it not for money, but for experience. ____, it’s a kind of volunteer activity.