I often play sports ___Saturday afternoon. [ ]

Tom needs some help ______ his homework. Can you help ______? [ ]

The man in a black suit _______ be our youth worker.— I’m sure it _______ be him. I saw him in the laboratory building some minutes ago.

It seems that it is going to rain. You’d better the windows open when you leave the house. [ ]

He is a swimmer, and he swims very _____________ .