Why does your brother ________ a sad look on his face these days?

–More than 13.7 million Americans were unable to find work in July.--Yeah, most        jobs for months.

 — It has been so foggy recently. — Cheer up! The fog               to clear up from tomorrow.

—Look, where are you going!—Sorry, I _______.

–Ann is in hospital. ---Oh, really? I _____ know ,I ____ go and visit her.