How to use the prepositions with the verbs like: began off, start off, start up?

[Lucila]

Hello Torsten

Thank you for the e-mail lesson 5 it’s pretty tricky I got 6 correctly answers from the test I will do it again and I’ll listen the audio lesson too, I also would like to ask you about what does mean and how to use the prepositions with the verb for example in the test, expression like: began off, start off, start up.
How can I know when I have to use off, up, on etc.

Thank you so much,
Lucila

[Torsten]

Hi Lucila,

Many thanks for sharing your learning progress with us. It's great to hear you like our materials and I can see from your progress report page that you have been very busy completing our tests. Keep up the good work! As for your questions, it's best if you ask them by clicking on the "Click for Explanation" links next to each test question as Alan has already answered many of them. Here is an example: What does 'start off' mean?

Please let me know what you think.
Best regards,
Torsten

TOEIC listening, talks: A radio commercial for a herbal sleeping pill