用所给单词的适当形式填空。

1. ______ (he)  books are in the bookcase.

2. These______(be) my rulers.

3. Are those ______ (she) oranges?

4.I ______ (not know) his name.

5. Where______(be) my keys?

6.  Are these your ______(photo)?

7. The  ______(pencil) are on the table.

8. ______ ( be) the computer game on the chair?

“下臂，行两筋之间，入掌中，循中指出其端”的经脉是（）经。