Focus on the pronunciation of take sth up
take sth up — Phrasal Verb with take
/teɪk/ verb [T] (took, taken)
› to fill an amount of space or time: Getting his business started has taken up all his time.
› to start doing a new job or activity: She takes up her new post on December 1.
› to accept something: To take up this offer, you must apply in writing by end March 2012.take sb up on sth I'm happy to take him up on his challenge.
› to discuss or deal with something in a formal way: take sth up with sb If you have a problem, you should take it up with the manager. I took the matter up with the bank.