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

Don’t ______ fire. It’s very dangerous. [ ]

What do you think ______solve the problem ?

hat do you think of genetically modified food (转基因食品)? —We all think ______ is careless ______ some scientists to say it is safe before doing any experiment.

I know the boy _____ the teacher.[ ]