用所给词的适当形式填空

（1）What your sister (do) now?

（2）He is on a (trip) to Nanjing.

（3）My mother (cook) in the kitchen now.

（4）—This is a film directed (导演)by Jay Chou.  — (real)? I like Jay Chou, and I like his films, too.

（5）Betty and Peter are (go) to the classroom.