----I’m sorry, but there is no smoking on this flight. ----Oh, I _____ that. Sorry, I won’t again.
| A．don’t know | B．didn’t know |
| C．won’t know | D．haven’t known |
-- I heard a student killed his mother cruelly.
-- So did I. It has ____a serious problem about the education system in China.
| A．taken up | B．made up | C．pulled up | D．brought up |
______ can gain access to the public library in our city no matter who they are.
| A．Everybody | B．Somebody | C．Anybody | D．Nobody |
Tom wrote several novels in his twenties, none of ______ published.
| A．them | B．it | C．which | D．that |
Much to his joy, the old man may be able to get a hardship _____ from the government, which covers his expense.
| A．insurance | B．allowance | C．competence | D．circumstance |
-- Why do you look so worried ?
-- My MacBook Pro broke down and my paper _____ unfinished ever since.
| A．left | B．was left | C．has been left | D．has left |