make a dialogue according to each situation below. your classmate is cleaning the blackboards. you offer your help. she/he gladly accepts the offer

a: hello friend, what are you doing?
b: I cleaned our blackboard.
a: can I help you?
b: oh of course, you can help in there

Lakukan dialog sesuai dengan situasi di bawah ini. Teman sekelas Anda sedang membersihkan papan tulis. Anda menawarkan bantuan Anda dia dengan senang hati menerima tawaran itu