Neither of them knows the difference ________ the two and neither can we tell one ________the other.

---You seem to have been impressed by his words.---No, not exactly. It was what he did _____ what he said struck me most.

In order to advance the development of Yancheng, the city government tries to beautify it as soon as possible. Several new special projects are ______.

I saw Tom _____ into the classroom without _____.

“What a terrible rain we are having!” “Yes. We are asked to pay more attention to the information about the rain ______ flood.”