-----Do you know whose shorts they are?-----_I think they are ______. _______ shorts are red.
Look! __________ high speed the roller coaster is __________.
What will the computer ______ in the future?
Father put the ladder(梯子)_________ the tree to pick the apples for me.
book named Harry Potter is good friend of mine.
--- Would you like to visit the new museum with us this Sunday? --- ________, but I will have to work then.