People are recycling many things which they away in the past.

Many people are __________ building a chemical factory（化工厂）near here . They are worrying about the possible pollution .

I hear you saw the film Taijiong last night. ______—It’s totally fascinating.

per studies some _______ cases inwhich something somehow wrong leads to the miscommunication, so that Englishteachers may improve their teaching.

Who would you like to buy the coat _______ – I’d like to give it to my brother _______ a present.