用所给词的适当形式填空

1. I'm from China and I'm _____ (China).

2. Tom and I _____ (be) good friends.

3. This is our _____ (one) English lesson.

4. _____ (be) you a new student?

5. I'm in Class _____ (two).

线圈长度是指组成一只线圈的纱线长度，一般以厘米为单位。