—Have you seen my pen bought during my visit to Hong Kong Disneyland?—Oh, Jane must have taken it _________ ; she has the same one as yours.
______ carefully if any change occurs when doing experiments in the lab.
Jane is in a hurry because the train to the airport leaves ______ half an hour.
--- Hi, let's go skating. --- Sorry, I'm busy right now. I ______ in an application form for a new job.
Some animals carry seeds from one place to another, ______ plants can spread to new places.
--- With the graduation time coming,l feel so sad to part with friends. --- Cheer up.______