—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
In this speech the scientist _________ the gold medal to his first teacher.
Was it _________ Jill’s brother said or something that he did _________ made her cry so sadly?
----Did you enjoy yourself at the concert? ----Yes, I could not have myself________. ----It was perfect.
The _________ nature of the job will be made clear when you start.
Because the scientists are always traveling towards the truth _________ arriving at them, they need to help one another to find the way.