--- Tony, you must have noticed the student who broke the glass．
--- I’m sorry．I attentively．
| A．studied | B．was studying | C．am studying | D．would study |
It remained_______whether our class will go to the 2010 Shanghai Expo during this summer vacation.
| A．to see | B．seen | C．to be seen | D．seeing |
. His carrying a small net was in the that the snakes would bite again.
| A．regulation | B．exception | C．association | D．expectation |
--Why are you so late ?
--I was on the way when it suddenly__to me that I had left my notebook home, so I had to fetch it.
| A．occurred | B．hit | C．happened | D．reminded |
It is ______ the customers’ needs that has made chain stores so popular in big cities in China.
| A．meeting | B．met | C．to have met | D．being met |
. No one really knows exactly when the first people arrived in_____we now know as California.
| A．that | B．which | C．what | D．where |