--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.
—______ a week do you use your computer? —Twice.
—Can I buy a film ticket? —Oh, sorry, we ___________.
He never ____learning English .That was why he was successful at last.
—________ hard work it is! —Yes, but he seems _____ to do it.
The game _____ ‘Travel in space’ sounds ______ and we are all _______in it.