Leaders of the BRIC countries-----Brazil, Russia, India and China----_______their second summit on Friday. President Hu Jintao then returned home to help direct relief work ______the deadly earthquake in Qinhai.
| A．left, to follow | B．concluded, following |
| C．had left, following | D．had concluded, followed |
—Have you finished the book? —No. I've read up to __________ the children discover the secret cave.
| A．which | B．what | C．that | D．where |
When I opened the door, I found my father sitting in his chair, completely __________ in the humorous stories he was reading.
| A．absorbed | B．losing | C．attracted | D．addicted |
Before __________him, Icalled him __________.
| A．visiting；in advance |
| B．visit；in advance |
| C．visiting ； advance |
| D．visit； advance |
In the past 100 years many species, as a result of human destruction to nature，__________ and many more __________ now.
| A．have disappeared； are disappearing |
| B．disappeared；are disappearing |
| C．have disappeared；disappear |
| D．are disappearing；disappear |
Johnson held a party，__________ he invited all hisfriends.
| A．for whom | B．to whom | C．to which | D．from which |