Not only I but also Tom and Jack ___ interested in English because it ____useful.
His wife _____ to Singapore a few times, and now she ____there for a meeting.
---Look at the boy running on the playground. Is it David? ---It ________ be him. I saw him go to the teachers’ office just now.
It's Sunday morning. We_______ get up early as usual.
---I don't like the music because I can't sing along with it. ---Me, _______.
--- Mum, have you seen my mobile phone? --- _________you bought last week? I’m sorry I haven’t seen _________.