1, The furniture was too old to keep
\(\rightarrow\) It is ............................................
2, Gary is the best guitarist in her class
\(\rightarrow\) No one else ..................................
3, Since the invention of computer ,people have saved a lot of time
\(\rightarrow\) Since the computer was .............................
4, It's necessary for everybody to clean up their neighborhood once a week
\(\rightarrow\) Everybody ....................................................
5, It may rain hard this afternoon , so take the raincoat with you
\(\rightarrow\) In case .....................................................
6, She had to do the washing up but she didn't
\(\rightarrow\) She forgot .......................................................
7, English is easy to learn
\(\rightarrow\) It ........................................................................
8, Don't leave the lights on all night ,you will waste electricity
\(\rightarrow\) If ........................................................................