The volunteers try to convince people _____ the fact that some species are in danger of _____.
| A．for; dying away | B．about; dying down |
| C．of; dying out | D．on; dying off |
__________ of danger in the street at night by police, young women in India nowadays have to go home with a friend or a family member __________ them.
| A．Having been warned; following |
| B．Warning; following |
| C．Having warned; following |
| D．Warned; followed |
__________ the Civil War, the university opened its door again and has been open ever since.
| A．To follow |
| B．Followed |
| C．Following |
| D．Having been followed |
The old couple often take a walk after supper in the park with their pet dog __________ them.
| A．to follow |
| B．following |
| C．followed |
| D．follows |
Strong typhoons hit the area very __________. Normally, they form and come here between July and August every year.
| A．generally |
| B．regularly |
| C．usually |
| D．suddenly |
Lots of rescue workers were working around the clock，__________ supplies to Yushu, Qinghai Province after the earthquake.
| A．sending |
| B．to send |
| C．having sent |
| D．to have sent |