--How far apart do they live ? ---_____ I know, they live in the same neighborhood.
It is the first time that I _______ this kind of moon cake.
There was ______ time _____ Chinese used foreign oil.
While ___ along the street, I met an old friend of mine.
Your time should be made full use of ________ English well.
Actions __________ walking and drinking are quite difficult in the moon.