--- I don’t know if he ____. --- He’ll come if it ___.
___ buy your ticket from a ticket machine. There are lots of people there.
I’m going to be late for work. There’re ___ buses on this route(线路).
Listen! The phone ___. Please go to answer it.
The box was too heavy for me to carry, ___I pulled it into my room.
The computer is broken. ___ it___ today?