Inversion and Subject-Verb Agreement

They raised the price and reduced the amount in the packet.

>> Not ___________ raise the price but they reduced the amount in the packet.

I have never seen anything like it.

>> Never _____ like

There has never been so much interest in mental health before.

>> Never before _____ so much interest in mental health.

They didn't tell us until the decision was confirmed.

>> Only when the decision was confirmed _____ us.

There has never been such a good time to do this.

>> Never before _____ such a good time to do this.

The second reason why mobile phones are the most beneficial invention in the last 100 years _______ that they can make life easier and more convenient.

Mobile phones _______ many useful tools and features such as a camera, web search function, a clock, a calculator, and a music player. For instance, many use their mobile phones to conduct their business.

In Japan, a majority of people _______ their salary by writing their blogs. Since one’s blog has a large influence on its viewers’ opinions and shopping habits, sponsors want to put their advertisements on blogs.

Some bloggers _______ to get many advertisements from sponsors in order to earn advertising expenses.

In this kind of business, working from mobile phones _______ a very important role as most bloggers use them to take pictures and write sentences and post those on their blogs. Mobile phones provide people with a new opportunity to earn money.