October 1 of 2009 is a special day, _________, I guess, which will be remembered by the Chinese for a long time.
| A．which | B．one | C．when | D．that |
He still remembers the days ______ he spent with your family.
| A．when | B．where | C．that | D．on which |
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 |