It was not until 1920_________ regular radio broadcast began.
—Artistic people_________be very difficult sometimes. —Well,you should know you married one.
—Shall we go out for__________walk? —Sorry.This is not the right____________to invite me.I am too tired to walk.
—Since you can't find a better way out for the time being,why not follow his advice? —Oh,_____________.
Not only ____ the jewelry she _____ been sold for her son’s gambling debts but also her house.
---- I did well in the English exam last week. ---- I did _____ . I got a full mark.