“参加…”造句

在参加该项目之前必须结清余账。
You have to pay your outstanding bill before joining the scheme.

我们将去伯明翰参加会议,然后马上回来。
We'll go to a meeting in Birmingham and come straight back.

你觉得谁会代替她参加这场演出?
Who do you suppose will replace her on the show?