根据情景内容，在空白处填入合适的单词。
Zhou Bo: Lyn, have you seen the poster (1)______ the noticeboard at school?
Lyn: No, I (2)________. What does it say?
Zhou Bo: It says volunteers are needed for a large international conference.
Lyn: That sounds interesting! What will the (3)______ do?
Zhou Bo: They are needed to work at reception to greet (4)________ and give directions.
Lyn: Are there any requirements for the volunteers?
Zhou Bo: Yes, the volunteers must be ready to help. They should also have good communication skills and speak fluent English. Actually, I think I’ll apply.
Lyn: Really? I'm interested and I’ll (5)_______ too.