Inversion

0Hello everybody!02br
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00Are the following sentences correct? It says that I have to make the sentence more formal.02br
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001. Our country does not need to rely on foreing investment any more. (No longer) 01font00 No longer does our country need to rely on a foreign inverstment.02br
02font002. You certainly should not borrow money without checking the interest rates. (Under no circumstances) 01font00Under no circumstances should you borrow money withought checking the interest rates. I don't know if I wrote it well, but I just don't understand what "check the interest rates" mean..05000.02font02br
003. Now we are finally seeing the benefits of the government's careful polices. (Only now) 01font00Only now can we see the benefits of the government's careful polices.02br
02font004. A change of government has not often had such a dramatic effect on the economic outlook. (Rarely) 01font00 Rarely a change of government has such a dramatic effect on the economic outlook.02br
02font005. Frederick looked for his wallet to pay. At that moment he realised he had left all his money at home. (Only then) 01font00 Only then had he realised that he had left all his money at home.02br
02font006. You definitely shouldn't reveal the details of your bank account over the telephone. (On no account) 01font00On no account should you reveal the details of your bank account over the telephone.02br
02font007. This country has not witnessed such a serious financial crisis before. (Never before) 01font00 Never before has this country witnessed such a serious financial crisis.02br
02font008. It's rare that a politician admits publicly that he has made a mistake. (Seldom) 01font00Seldom has a politician admitted publicly that he has made a mistake.02br
02font009. George had to pay a large fine, and he had to spend some time in prison as well. (Not only...also) 01font00 Not only did he have to pay a large fine, but also spend some time in prison.02br
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01font00Thanks in advance for your help!:)02font010id6