下列句子中各有一处错误，请你找到，并加以改正。

( )1. He finds his ID card on the dress.

( )2. There are some pencil in the case.

(     )3. Is the video cassettes behind the computer?

( )4. My hat is in the chair.

(     )5. There isn't any radios in the shop.

空气中TVOC的测定现场采样后，取下吸附管，应（）

A.密封吸附管的两端

B.做好标识

C.放入可密封的金属容器中

D.放入可密封的玻璃容器中