The thieves ran away when the burglar alarm(防盗警报器) .
A．broke away B．came back C．went badly D．went off
The secretary worked late into the night, _____ a long speech for the president.
A．to prepare B．preparing C．prepared D．was preparing
The train was ______ to arrive at 11:30,but it was an hour late.
A．about B．likely C．certain D．supposed
I have been keeping the portrait _____ I can see it every day, as it always reminds me of my childhood in Paris.
A．since B．where C．as D．if
Because he ________ the secret, his friend became very angry.
A．put out B．let out C．gave out D．left out
People like to eat sweet dumplings on the Eastern Festival，which ____ in hot water．
A．were served B．served C．are served D．serves
