一When did you learn the news that Obama made a trip to Canada as President?
一 ____ was on my return．
| A．That | B．It | C．There | D．This |
Soon they ____________ the water which ____________ the pipe.
| A．ran out; ran out of | B．ran out of; ran out of |
| C．ran out; ran out | D．ran out of; ran out |
The children were not ___ for the accident. After all, they were still so young.
| A．to blame | B．to be blamed | C．blaming | D．blame |
I shall never forget those years ____ I studied in the school with my classmates and teachers，__________ has a great effect on my life．
| A．that; which | B．when; which | C．which; that | D．when; who |
It’s_____ that we should have to queue, when we have already got our tickets.
| A．accessible | B．voluntary | C．appropriate | D．ridiculous |
He had been so absorbed____ watching the car passing by that he didn’t notice his friends ____.
| A．to; coming | B．in; to come | C．on; coming | D．in; coming |