----- Is that Mr.Smith over there? ----- No, it _____ be him --- I am sure he is much taller.
—What do you think of your step-mother? —There are some things that are not easy to______, but on the whole she is a good mother.
John rushed out in a hurry, ____ the door ____.
—Jack, _____ you behave yourself? You're no longer a kid.—Sorry, Daddy.It won't happen again.
Can you tell me ___ which you based your calculation __ detail ?
After looking at many new cars, I found ______ which I would accept just as suitable.