Do you know the teacher ____ classes are interesting and exciting?— Yes, she is Mrs. Zhang.

Why do you look so worried?—I’m expecting a call from my son. He London for three days.

The girl ___________ is sitting under the big tree is Lynn’s cousin.

Look at the girl in the red skirt. ______is my new classmate.

What are you going to do next weekend?—I _____ yet. Do you have any good ideas?