tolong soalnya di kumpulkan besok

18) C.NICE TO MEET YOU,TOO.
20) D.CLASSMATES.
21) C.YOU ARE WELCOME.

SEMOGA MEMBANTU :)

18.C.Nice to meet you,too
19.D.leave taking
20.D.classmates
21.D.all of the answers above are correct
22.C.your welcome

smoga mmbntu ,maaf kalo salah