--- May I go now? --- No. You ______________ let the teacher know first.”
---Are Jim and Bob playing outside? ----_______.They are doing their homework in the study.
--Who’s the man over there?Is it Mr Black? ----It _____be him.He’s much taller.
David comes from______ European country and he is ___honest boy.
–Thank you for the present you sent me. It’s so nice. --________________.
– Alex, how long ____________ you ___________ in this school? --For three years. I’ll graduate in July.