"get on with" vs. "come up with"

[Keytee]

English Grammar Tests, Elementary Level

ESL/EFL Test #102 "Phrasal verbs", question 9

Our teacher told us to ......... our work quietly.

(a) get on with
(b) put up with
(c) run out of
(d) come up with

English Grammar Tests, Elementary Level

ESL/EFL Test #102 "Phrasal verbs", answer 9

Our teacher told us to get on with our work quietly.

Correct answer: (a) get on with

Your answer was: incorrect
Our teacher told us to come up with our work quietly.
_________________________

Can you please explain why we use "get on with" instead of the others?

Thanks.

Keytee

[Conchita]

The phrasal verb that makes the most sense in the context of this sentence is to get on with, which means to continue doing something, especially work.

put up with someone/something means to accept someone/something, even if they are unpleasant/noisy, etc: people living near the airport have to put up with aircraft noise.

To run out is to go short: we are running out of petrol.

To come up with is to suggest or think of an idea or plan: he has come up with an original idea.