--How come a simple meal like this costs so much?
--We have____in your bill the cost of the teapot you broke just now.
A.added B.included C.gained D.contained

contain 和 include 虽然都有"包含"的意思，但 contain 可用于表示包含所含之物的全部或部分，而 include 则只是包含一部分。试对比：

The parcel contained a dictionary . 那包裹里装的是一本字典。

The parcel included a dictionary . 那包裹里也包括了一本字典。

The tour includes a visit to Paris . 这次旅行包括游览巴黎。

The basket contains a variety of fruits . 这篮子装有各种水果。

(2) including 可以作介词连接介词短语。试比较：

Many women were waiting to buy that kind of cloth , including my mother .

Many women were waiting to buy that kind of cloth , my mother included .

可以这样说，include 着重"被包含者只是整体中的一部分"。contain 着重"内有"。
(3)contain (vt.)包括，包含，指某物内含另一物（不可用于进行时)
故选B
此处强调“还有”