DERIVATIVES or WORD FORMATION Ex1: 1 :After his parents died ,he was sent to an ...........(ORPHAN) 2:Some of my ............(CLASS) are going to my birthay party 3:Huy makes friends very easily beacause he is very (SOCIAL) 4:Is this bag big enough for these ............(GROCER) 5:We like our Math teacher for these ............(HUMOROUS) 6:He is the most respected person in my .............(NEIGHNOR) 7:Tam and Quang rarely talk freely about themselves .They 're very .........(RESERVE) 8:We are making .........for the trip to dien bien next week (ARRANGE) 9:Tom is woring as an ........to Professor Brown (ASSIST) 10:I can think of ...........reason for not attending the metting (COUNT) 11:They are ........a new computer system at the computer Exposition (DEMONSTRATION) 12:Some ............ are not very satisfied with the service of Thang Loi hotel (CUSTUMS) 13:The conpany has arranged for the ..............of the furniture to Mrs .Lien's home (DELIVER) 14: Be careful to cover the .............sockest for the safety of the children (ELECTRIC) 15: Every .......... in my neighborhood has at least one TV set (HOUSE) 16:The children ...........himself by playing with a kitchen knife (INJURY) 17:I am going to shop for a rice.................what brand do you recommend (COOK) 18:Cook the meat in the ..........for at least 30 minutes (STEAM) 19:The thief had ...........before the police arrived (APPEAR) 20:You can buy sports .........at the store overthere (EQUIP) )