Помогите пожалуйста,нужно правельно соединить)Заранее спасибо 1.catch up with a. to have a good relationship 2.fall behing b.to begin to do something as a pastime 3. get on with c. to work hard to do uncompleted work 4.look up d. to search for a piece of information 5.go on e.to fail to keep level with another 6.take up f. to continue.

1.catch upwith - e.to fail to keep level with another
 2.fall behind  - c. to work hard to do uncompleted work 
3. get on with -  a. to have a good relationship    
 4.look up -d. to search for a piece of information
 5.go on  - f. to continue.                
6.take up  -  b.tobegin to do something as a pastime