Do you know which factory p_ this kind of CD-ROM?They are going on a _ to Beijing,They are foreigh _(tour).In this game,the treasure _(hide) somewhere in the Arctic.

问题描述:

Do you know which factory p_ this kind of CD-ROM?
They are going on a _ to Beijing,They are foreigh _(tour).
In this game,the treasure _(hide) somewhere in the Arctic.

produces
tour, tourists
is hidden

trip, tourists, is hidden

produces
tour tourists
is hidden