Have you returned the book to the library _______?––Yes, I have _________ returned it.
. My first summer vocation in the high school, _______I spent a fortnight on the farm, is really unforgettable.
You can _____ it in English. The actor can’t ____ Chinese at all.
Your MP4 is quite cheap. Where did you buy ________? I want to buy ________, too.
The teacher is coming back ___ an hour. [ ]