There is _______big desk in our classroom._______desk is for our teacher.

We were about to start out________ our friends calledus up from Shanghai.

eir own work ,most of the parents spend little time with their children.

We have more than 80 flats in this building, each ____ solar heaters．

Do you know where David is? I couldn’t find him anywhere. – Well. He _____ have gone far — his glasses are still here.