case

在那种情况下，我们最好坐出租车。

In that ___case, we'd better take a taxi.

哦，那样的话，我就去问喜欢严肃电影的人。

Oh, in that ___case, I'll ask someone who likes serious movies.

那样的话，我就去公园。

In that ___case, I'll go to the park.