---The man in a black suit _______ be our youth worker.---It _______ be him. I saw him in the classroom building some minutes ago.
下列各项都属于元音字母的是___________。
——Hi, Helen! ____________ ——Fine, thanks.
Is this _____desk?
Our school will have a basketball game _____ next month.
---Do you like August or June? ---______.