同义句转换,一空填一词1.It is useful to learn a foreign language.______

同义句转换,一空填一词
1.It is useful to learn a foreign language.
_________ a foreign language__________ useful.
2.You can go to the cinema by yourself.
You can go to the cinema _________.
3.Don't forget to bring your umbrella.
________ _________ bring your umbrella.
4.Uncle Li went running in the morning when he was he was young.But he doesn't do that now.
Uncle Li ____________ ___________ ___________ running in the morning.