---Tom, why not stop ________ a rest?--- Oh, no, Mum. It’s so exciting that I can’t stop ___ the kite.
Daniel lives _______ his family _______ a flat _______ a quiet street.
Now children, turn to Page _____ and look at the _____ picture in Unit 1.
There is ______ “u” and ______ “s” in the word “use”.
I don’t like physics ______ it’s too difficult for me.
—_____ do you _____ the book? —It’s very interesting.