Look! You have left the room ____, and you must put it ____right away.
The child asked his mother ________ go out to play tennis.
It is the first time that I _______ this kind of moon cake.
_____ catch the first bus, he got up very early this morning.
It was because of bad weather _____ the football match had to be put off.
There was ______ time _____ Chinese used foreign oil.