The factory, including its machines and buildings, ______ burnt to ashes during the fire.
When was it________you let out the secret?
-- Have you seen ______pen? I left it here this morning -- Is it ______black one? I think I saw it somewhere
Great changes ______ in the past few years, and a lot of factories ________.
—What about going for a walk? —______.
______ with routine office tasks, she had no time to look after her children.