He is quite enthusiastic _______ competing in the annual marathon of the city.

Paparazzi are very curious _______ celebrities’ private lives.

We were just bystanders who weren’t involved _______ the fight.

Some people believe that this symbol is derived _______ Japan.

One of the greatest things about this film is that it is based _______ a real story.

You should eat more fresh fruits because they’re rich _______ vitamins.

Not only does Sam play the guitar well but he’s also good _______ playing chess.

The campaign was successful _______ convincing people to stop smoking.

The government has been successful _______ containing the spread of the disease.

With waves of layoffs in many countries, some people are worried _______ losing their jobs.

We’re amazed _______ how quick her recovery is.

The updated version of the manuscript is quite different _______ the original one.

You can seek advice from Hung; he’s very experienced _______ teaching.

Are you really serious _______ quitting your job?

Tom was absent _______ class this morning because he got up late.

The manager is glad _______ the successful completion of the project.