—Where is Zhang Hua? Is he in the classroom now?—He be there, for I saw him in the teachers’ office just now.
---Would you like another cup of coffee? ---__________ It tastes good.
All of us had fun ____________ around the campfire last night.
Daniel is always willing ________ others _________ with their Math.
---____________________? ---He is generous and polite.
_____________ each class, we often do some exercises.