英语 用连词填空

英语 用连词填空
1.The current,_________ is very rapid,makes the river dangerous.
2.Beethoven ,_______ pieces are we have played,is a famous composer.
3.Newton was one of the greastest men _______ ever lived.
3.Is there anyone else _______ we should invite to the party?
4.________ I didn'tknoe English ,I had to ask somebody to be my interpreter.