Hoang / used / write / friends / but / now / he / telephone

=>Hoang used to write to his friends but now he telephones them

He/ work / bank/ since/ he /leave / college

=>He has worked in a bank since he left the college
 

we/extreme/tired/after /trip /so/sleep/bus/way/home

-> We were extremely tired after the trip so we slept on the bus on the way home.

Language learners / try/ diffrent / ways /learn / words / words / so as/ find out/ best way / themselves

=>Language learners should try diffrent ways of learning words so as to find out the best way for themselves