—Do you know ______ ?—Sorry. I don't have a watch.
---Dave, is this your English textbook? ---No, it isn’t mine. Maybe it’s _______.
---Do you like the book I lent you yesterday? ---Yes, I do. I like books about _______ sun.
—What do you think of the story?—____.
I have a toothache .I should .
—What were you doing at 8 o’clock this morning?—____.