--- When did your father come back last night?--- He didn’t come back _______ he finished all the work.
—___________ is the sofa? —It’s $200.
Ed likes baseball, ___________ he doesn't like tennis.
—Do you have a tennis ball? —____________. Let’s ask Jim for help.
—Do you like history? —Yes. I think it’s _________. I can know much from it.
—What’s her favorite __________? —She likes strawberries best.