HackerRank Preposition Quiz -1

On is the correct answer here. “On” is used to indicate a position atop a surface or just above or outside a given area.

In is the correct answer here.
in is used to indicate location or position within or inside something:

Aboard is the correct answer. Aboard here means to come on board and work with the team.

Of is the correct answer here
We use of when we want to show that people or things relate to other things or people

‘set out’ means to begin. So correct preposition would be set out on

Within is the correct answer here. Use of within: before a particular period of time has finished

That is the correct answer here
'That' is used as a determiner at the beginning of sentences to indicate one object which is far from the speaker.

On is the correct answer here
On is used to indicate position, usually indicating that something is on top of something else. It is also used when you want to indicate a position above or atop a space.

For is the correct answer here
for + period: a "period" is a duration of time - five minutes, two weeks, six years. For means "from the beginning of the period to the end of the period".

By is the correct answer here. In passive sentences we use by to show who or what did an action: