133. If you ____________ doing something or having something, you must do it or have it.
I wonder if this is the computer you want______ .
The teacher insisted that I______ a mistake and insisted that I______ the physics problem again.
---Can we sit at the table near the window? ---I’m sorry, but it______ already.
Mr Black decided to give up his farm and devote all his time to______ those children living on the streets.
My father went to work by car______ today, but he arrived at the company later______ .