Which sentence uses the subjunctive mood correctly in formal English?

If he were more careful, he wouldn’t make so many mistakes.

What does the idiom “to throw someone under the bus” mean?

Which of the following sentences demonstrates correct parallel structure?

He wanted to learn French, dancing, and how to cook.

Which sentence contains a cleft sentence used for emphasis?

She got through the tough times with determination.

It was her determination that got her through the tough times.

Getting through the tough times was challenging for her.

Choose the most natural and idiomatic sentence:

We discussed about the new project in the meeting.