Doctors the old man not to smoke so much, but he just couldn’t give it up.
–Why do you look so upset? –The electricity was cut off suddenly and my essay _______ unfinished since.
– It is said that Frank is very rich and is always changing his private cars .What is he? –_______ of a manager, I am not sure.
Among so many people at the party, I _______ John, one of my classmates after 20 years.
He was about to leave the office for home _______someone knocked the door and asked for some help.
There are nearly one hundred foreign students in our university, most of _______ are from America and Australia.