下列仪器中不能作为反应容器的是（      ）

They finished their work. ____, they went to help others.

根据问句选答语。

①How much is that belt? ____       A.I bought a movie ticket.

②Can I help you?        ____        B. Yes, do you have new bags?

③How about this baseball cap?  ____    C. $30.

④Which sunglasses do you prefer?____      D. Oh, no. It's not my style.

⑤What did you buy?       ____      E.I prefer these.