—I went to return the book to Jack, but I couldn’t find him.—He ______ the library. You can find him there.
The young man was often seen by the lake.
-- When did you borrow the book? -- I it for 2 weeks.
I can’t tell the time because my watch last night.
-- Jack, I haven’t seen your sister for a long time. -- She Shanghai on business for two months.
--Alice, would you mind not playing the guitar? I on the phone. --Oh, sorry, mom.