1. speaking english fluently is not easy

⇒It is not easy to speak English fluently

2. You remembered to the letter didn't you ?

⇒You didn't forget the letter, did you?

3. it is a six hours flight from lon don to New York

⇒It takes six hour to fly from London to New York

4. He not only spent all his money . he even borrowed

⇒Not only did he spend all his money but also he borrowed

1. It's difficult to speak English fluently.

2. You didn't remember to the letter, did you?

3. It takes six hours to fly from London to New York.

4. Not only did he spend all his money, but he also borrowed.